diff --git a/.gradle/7.1/executionHistory/executionHistory.bin b/.gradle/7.1/executionHistory/executionHistory.bin
index b8b58690fd5561f56d06f6b62fbc679448c3ff8a..8c4215e612dfea32c50c271597abfcdc0c17d447 100644
Binary files a/.gradle/7.1/executionHistory/executionHistory.bin and b/.gradle/7.1/executionHistory/executionHistory.bin differ
diff --git a/.gradle/7.1/executionHistory/executionHistory.lock b/.gradle/7.1/executionHistory/executionHistory.lock
index 7f2a7d61ab112334be133ae361ccafdfeefa532b..073b38e2a654e1c5eae26cdbb47f758638176b57 100644
Binary files a/.gradle/7.1/executionHistory/executionHistory.lock and b/.gradle/7.1/executionHistory/executionHistory.lock differ
diff --git a/.gradle/7.1/fileHashes/fileHashes.bin b/.gradle/7.1/fileHashes/fileHashes.bin
index 36a76e19f7208eb420e132f67cb1af05016192c7..effa45b8dfb1edf445cfa847c0d69de6fc06e205 100644
Binary files a/.gradle/7.1/fileHashes/fileHashes.bin and b/.gradle/7.1/fileHashes/fileHashes.bin differ
diff --git a/.gradle/7.1/fileHashes/fileHashes.lock b/.gradle/7.1/fileHashes/fileHashes.lock
index 6a423da5aaec22cb1e57be11ad6ec9d79928e4ad..d92e628b4b1a789e8eeb6bfaa4ae434d76fad77e 100644
Binary files a/.gradle/7.1/fileHashes/fileHashes.lock and b/.gradle/7.1/fileHashes/fileHashes.lock differ
diff --git a/.gradle/buildOutputCleanup/buildOutputCleanup.lock b/.gradle/buildOutputCleanup/buildOutputCleanup.lock
index 17f3370ac40e774b372d80fcd65488a2f18aad2e..0a32a0621938c92af941dd57e382cb1887fc0eab 100644
Binary files a/.gradle/buildOutputCleanup/buildOutputCleanup.lock and b/.gradle/buildOutputCleanup/buildOutputCleanup.lock differ
diff --git a/.idea/sonarlint/issuestore/0/5/05efc8b1657769a27696d478ded1e95f38737233 b/.idea/sonarlint/issuestore/0/5/05efc8b1657769a27696d478ded1e95f38737233
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/.idea/sonarlint/issuestore/2/a/2a45a911a8f1836b0b6c5b758962572012d8f8c3 b/.idea/sonarlint/issuestore/2/a/2a45a911a8f1836b0b6c5b758962572012d8f8c3
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/.idea/sonarlint/issuestore/5/b/5bbfa66edb4db3c7c33c5181f43510990d3307f9 b/.idea/sonarlint/issuestore/5/b/5bbfa66edb4db3c7c33c5181f43510990d3307f9
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/.idea/sonarlint/issuestore/f/0/f07866736216be0ee2aba49e392191aeae700a35 b/.idea/sonarlint/issuestore/f/0/f07866736216be0ee2aba49e392191aeae700a35
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/.idea/sonarlint/issuestore/f/b/fbe448ebfc3eb2d4e308f6b8b043666f5b57235e b/.idea/sonarlint/issuestore/f/b/fbe448ebfc3eb2d4e308f6b8b043666f5b57235e
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/.idea/sonarlint/issuestore/index.pb b/.idea/sonarlint/issuestore/index.pb
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..52df6fbd3b207a2aef3453798a8b66713d2c1f2f 100644
--- a/.idea/sonarlint/issuestore/index.pb
+++ b/.idea/sonarlint/issuestore/index.pb
@@ -0,0 +1,11 @@
+
+X
+(gradle/wrapper/gradle-wrapper.properties,f/b/fbe448ebfc3eb2d4e308f6b8b043666f5b57235e
+7
+gradlew,5/b/5bbfa66edb4db3c7c33c5181f43510990d3307f9
+<
+ build.gradle,f/0/f07866736216be0ee2aba49e392191aeae700a35
+?
+settings.gradle,0/5/05efc8b1657769a27696d478ded1e95f38737233
+;
+ gradlew.bat,2/a/2a45a911a8f1836b0b6c5b758962572012d8f8c3
\ No newline at end of file
diff --git a/.idea/uiDesigner.xml b/.idea/uiDesigner.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e96534fb27b68192f27f985d3879e173ec77adb8
--- /dev/null
+++ b/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="Palette2">
+ <group name="Swing">
+ <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+ </item>
+ <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+ </item>
+ <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+ </item>
+ <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
+ <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+ </item>
+ <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+ <initial-values>
+ <property name="text" value="Button" />
+ </initial-values>
+ </item>
+ <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+ <initial-values>
+ <property name="text" value="RadioButton" />
+ </initial-values>
+ </item>
+ <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+ <initial-values>
+ <property name="text" value="CheckBox" />
+ </initial-values>
+ </item>
+ <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+ <initial-values>
+ <property name="text" value="Label" />
+ </initial-values>
+ </item>
+ <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+ <preferred-size width="150" height="-1" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+ <preferred-size width="150" height="-1" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+ <preferred-size width="150" height="-1" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+ <preferred-size width="150" height="50" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+ <preferred-size width="150" height="50" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+ <preferred-size width="150" height="50" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+ </item>
+ <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+ <preferred-size width="150" height="50" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+ <preferred-size width="150" height="50" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+ <preferred-size width="150" height="50" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+ <preferred-size width="200" height="200" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+ <preferred-size width="200" height="200" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+ <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+ </item>
+ <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+ </item>
+ <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+ </item>
+ <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+ </item>
+ <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+ <preferred-size width="-1" height="20" />
+ </default-constraints>
+ </item>
+ <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+ <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+ </item>
+ <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+ <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+ </item>
+ </group>
+ </component>
+</project>
\ No newline at end of file
diff --git a/build/classes/java/main/BinaryOperatorExamples.class b/build/classes/java/main/BinaryOperatorExamples.class
index 888f34d3531f7be76c42f4a52e2a58ff9c69de1a..7e0d3c248a9a047a4b348bb67f330f3f53d5b372 100644
Binary files a/build/classes/java/main/BinaryOperatorExamples.class and b/build/classes/java/main/BinaryOperatorExamples.class differ
diff --git a/build/classes/java/main/ConsumerExamples.class b/build/classes/java/main/ConsumerExamples.class
index 7ef073030b42e00045d53f7dce248439b14777dd..6d1502c3d8d6ba8e6ed302fcc4e33e4b5a132758 100644
Binary files a/build/classes/java/main/ConsumerExamples.class and b/build/classes/java/main/ConsumerExamples.class differ
diff --git a/build/classes/java/main/GroupByExamples.class b/build/classes/java/main/GroupByExamples.class
index 15fa36547f6fb7261de89710113ece98e6eaa5d5..b29341d2fde3d650c5cd1de564585e6531bb755b 100644
Binary files a/build/classes/java/main/GroupByExamples.class and b/build/classes/java/main/GroupByExamples.class differ
diff --git a/build/classes/java/main/PredicateExamples.class b/build/classes/java/main/PredicateExamples.class
index a87317d177dec5da769dd4aba87e78d9af3bf69f..50e5e56f619e9380efacbd107aeaa280ab443fdf 100644
Binary files a/build/classes/java/main/PredicateExamples.class and b/build/classes/java/main/PredicateExamples.class differ
diff --git a/build/classes/java/main/SortExample.class b/build/classes/java/main/SortExample.class
index f27b8f64dcce247b97388ff5625350e5c8241ff1..29c2e8058f0c84b81e7446cade79f2c7262e0cd0 100644
Binary files a/build/classes/java/main/SortExample.class and b/build/classes/java/main/SortExample.class differ
diff --git a/build/classes/java/main/domain/Address.class b/build/classes/java/main/domain/Address.class
new file mode 100644
index 0000000000000000000000000000000000000000..3b664cbbfc86f1d9cc88461140cce0402a68d167
Binary files /dev/null and b/build/classes/java/main/domain/Address.class differ
diff --git a/build/classes/java/main/domain/Employee.class b/build/classes/java/main/domain/Employee.class
new file mode 100644
index 0000000000000000000000000000000000000000..b8267b2e9711bc2d36262d6dd5cc1e2d41a38981
Binary files /dev/null and b/build/classes/java/main/domain/Employee.class differ
diff --git a/build/classes/java/main/enums/Gender.class b/build/classes/java/main/enums/Gender.class
new file mode 100644
index 0000000000000000000000000000000000000000..d5a0676711fecc94253db770f4ff4f7f6f41cae6
Binary files /dev/null and b/build/classes/java/main/enums/Gender.class differ
diff --git a/build/classes/java/main/reviewcomments/EmployeeUtil.class b/build/classes/java/main/reviewcomments/EmployeeUtil.class
new file mode 100644
index 0000000000000000000000000000000000000000..4fa651071bd437c3724c61d7da07904dd6f28283
Binary files /dev/null and b/build/classes/java/main/reviewcomments/EmployeeUtil.class differ
diff --git a/build/tmp/compileJava/previous-compilation-data.bin b/build/tmp/compileJava/previous-compilation-data.bin
index 95ab3533e2745008f19fe0e3e72193a6e801e4ac..5bdc692dc5a872f95c896bacef7568d9324920b5 100644
Binary files a/build/tmp/compileJava/previous-compilation-data.bin and b/build/tmp/compileJava/previous-compilation-data.bin differ
diff --git a/src/main/java/BinaryOperatorExamples.java b/src/main/java/BinaryOperatorExamples.java
index 1715b8a2dfaa35000113088388b1d6ce25582703..18bc09bd5ab654774c56fa476a14eb9589c5c502 100644
--- a/src/main/java/BinaryOperatorExamples.java
+++ b/src/main/java/BinaryOperatorExamples.java
@@ -5,6 +5,7 @@ import java.util.Comparator;
import java.util.List;
import java.util.function.BiFunction;
import java.util.function.BinaryOperator;
+import java.util.function.Function;
import java.util.stream.Collectors;
public class BinaryOperatorExamples {
diff --git a/src/main/java/ConsumerExamples.java b/src/main/java/ConsumerExamples.java
index cd1fc1de4b63c5728e15af459c8d836b3580ee9c..2882da5a4aef55f56581a0f25f641987da0a5aff 100644
--- a/src/main/java/ConsumerExamples.java
+++ b/src/main/java/ConsumerExamples.java
@@ -12,16 +12,15 @@ public class ConsumerExamples {
}
private static void inbuiltBiConsumer() {
- Map<String,String> map=new HashMap<>();
- map.put("1","1");
- map.put("2","2");
- map.forEach((x,y)->System.out.println("inbuiltBiConsumer"+x.concat(y)));
+ Map<String, String> map = new HashMap<>();
+ map.put("1", "1");
+ map.put("2", "2");
+ map.forEach((x, y) -> System.out.println("inbuiltBiConsumer" + x.concat(y)));
}
private static void biConsumer() {
- BiConsumer<String, String> biConsumer = (x, y) -> x.concat(y);
- System.out.println(biConsumer);
-
+ BiConsumer<String, String> biConsumer = (x, y) -> System.out.println(x.concat(y));
+ biConsumer.accept("hi", "hello");
}
private static void simpleConsumer() {
diff --git a/src/main/java/GroupByExamples.java b/src/main/java/GroupByExamples.java
index 4f74152528baeb4ec9123218f16b633e083e2c95..9612ab3755e8fbd20e1f592bd72add0e891180c0 100644
--- a/src/main/java/GroupByExamples.java
+++ b/src/main/java/GroupByExamples.java
@@ -19,13 +19,16 @@ public class GroupByExamples {
public static void main(String[] args) {
- List<Person> list = Arrays.asList(new Person(1, "Alex", 100d, new Department(1, "HR")), new Person(2, "Brian",
- 200d, new Department(1, "HR")), new Person(3, "Charles", 900d, new Department(2, "Finance")), new Person(4,
- "David", 200d, new Department(2, "Finance")), new Person(5, "Edward", 200d, new Department(2, "Finance")),
- new Person(6, "Frank", 800d, new Department(3, "ADMIN")), new Person(7, "George", 900d, new Department(3,
- "ADMIN")));
+ List<Person> list = Arrays.asList(
+ new Person(1, "Alex", 100d, new Department(1, "HR")),
+ new Person(2, "Brian", 200d, new Department(1, "HR")),
+ new Person(3, "Charles", 900d, new Department(2, "Finance")),
+ new Person(4, "David", 200d, new Department(2, "Finance")),
+ new Person(5, "Edward", 200d, new Department(2, "Finance")),
+ new Person(6, "Frank", 800d, new Department(3, "ADMIN")),
+ new Person(7, "George", 900d, new Department(3, "ADMIN")));
- System.out.println("GroupByExamples by Simple Condition :" + simpleCondition(list));
+ System.out.println("GroupByExamples by Simple Condition :" + simpleCondition(list));
System.out.println(" collect only the person ids in all departments" + personIds(list));
@@ -40,6 +43,12 @@ public class GroupByExamples {
System.out.println("GroupByExamples with Filtering" + filter(list));
+ //Reveiew suggestions
+
+ // return map for complex grouping by
+ System.out.println("GroupByExamples by Complex Condition" + complexGroupBy(list));
+
+
Map<Integer, Department> departmentMap = list
.stream()
.collect(Collectors.toMap(Person::getId, Person::getDepartment));
@@ -66,14 +75,23 @@ public class GroupByExamples {
return list.stream().collect(Collectors.groupingBy(Person::getDepartment, counting()));
}
+
+
private static Map<Object, List<Integer>> complex(final List<Person> list) {
return list
.stream()
- .collect(Collectors.groupingBy(person -> new Pair<>(person.getSalary(), person.getSalary()),
+ .collect(Collectors.groupingBy(person -> new Pair<>(person.getSalary(), person.getDepartment()),
Collectors.mapping(Person::getId, toList())));
+ }
+ private static Map<Pair<Double, Department>, List<Person>> complexGroupBy(final List<Person> list) {
+ return list
+ .stream()
+ .collect(Collectors.groupingBy(person -> new Pair<>(person.getSalary(), person.getDepartment())));
}
+
+
private static Map<Department, List<Integer>> personIds(final List<Person> list) {
return list.stream().collect(Collectors.groupingBy(Person::getDepartment, mapping(Person::getId, toList())));
}
diff --git a/src/main/java/PredicateExamples.java b/src/main/java/PredicateExamples.java
index 1dee44012c850d2b992a100dfc0c7c03c0ec4e09..0022a66c7fd413b47244452c54cb8e91c7af0cfb 100644
--- a/src/main/java/PredicateExamples.java
+++ b/src/main/java/PredicateExamples.java
@@ -24,12 +24,10 @@ public class PredicateExamples {
BiPredicate<String, Integer> biPredicate = (x, y) -> {
return (x.equals("google.com") || y == 0);
};
- System.out.println(domainList
- .stream()
- .filter(domain -> biPredicate.test(domain.getName(), domain.getScore()))
- .collect(Collectors.toList()));
+
}
+
private static void biPredicate() {
BiPredicate<String, Integer> biPredicate = (x, y) -> x.length() == y;
System.out.println(biPredicate.test("Bat", 3));
diff --git a/src/main/java/SortExample.java b/src/main/java/SortExample.java
index b8e658f5b9c1ade696a73b0e08c06121d315a5ad..c374cd6c2f0fa03d045a6b151dcdd9b5ae0f9ca2 100644
--- a/src/main/java/SortExample.java
+++ b/src/main/java/SortExample.java
@@ -5,7 +5,7 @@ import java.util.stream.Collectors;
public class SortExample {
public static void main(String[] args) {
List<Integer> list = Arrays.asList(2, 4, 1, 3, 7, 5, 9, 6, 8);
- list = list.stream().sorted((o1, o2) -> o2.compareTo(o1)).collect(Collectors.toList());
+ list = list.stream().sorted((o1, o2) -> o1.compareTo(o1)).collect(Collectors.toList());
System.out.println(list);
}
}
diff --git a/src/main/java/domain/Address.java b/src/main/java/domain/Address.java
new file mode 100644
index 0000000000000000000000000000000000000000..14574a70e674633e922ca40a8f6c712a21a4a968
--- /dev/null
+++ b/src/main/java/domain/Address.java
@@ -0,0 +1,38 @@
+package domain;
+
+import java.util.Optional;
+
+
+public class Address {
+
+ private Optional<String> addressText;
+
+ private Optional<Long> contactNumber;
+
+ /**
+ * Parameterised constructor
+ * @param address
+ * @param contactNumber
+ */
+ public Address(String address, long contactNumber) {
+ this.addressText = Optional.ofNullable(address);
+ this.contactNumber = Optional.ofNullable(contactNumber);
+ }
+
+ public Optional<String> getAddressText() {
+ return addressText;
+ }
+
+ public void setAddressText(Optional<String> addressText) {
+ this.addressText = addressText;
+ }
+
+ public Optional<Long> getContactNumber() {
+ return contactNumber;
+ }
+
+ public void setContactNumber(Optional<Long> contactNumber) {
+ this.contactNumber = contactNumber;
+ }
+
+}
diff --git a/src/main/java/domain/Employee.java b/src/main/java/domain/Employee.java
new file mode 100644
index 0000000000000000000000000000000000000000..a53e906a6d3e804a1bcfede7c3bd8bdaf33aa2dc
--- /dev/null
+++ b/src/main/java/domain/Employee.java
@@ -0,0 +1,136 @@
+/**
+ *
+ */
+package domain;
+
+
+import enums.Gender;
+
+import java.util.List;
+import java.util.Optional;
+
+
+public class Employee {
+
+ private String firstName;
+
+ private String lastName;
+
+ private String fullName;
+
+ private List<Address> addresses;
+
+ private Long salary;
+
+ private String departmentName;
+
+ private Integer emplId;
+
+ private Gender gender;
+
+ /**
+ * Parameterised constructor.
+ *
+ * @param firstName first name
+ * @param lastName last name
+ * @param address addresses
+ * @param salary salary
+ * @param departmentName department name
+ * @param gender gender(male or female)
+ */
+ public Employee(int emplId, String firstName, String lastName, List<Address> address, long salary,
+ String departmentName, Gender gender) {
+
+ this.emplId = emplId;
+ this.firstName = firstName;
+ this.lastName = lastName;
+ this.addresses = address;
+ this.salary = salary;
+ this.departmentName = departmentName;
+ this.gender = gender;
+ }
+
+ public Optional<String> getFirstName() {
+ return Optional.ofNullable(firstName);
+ }
+
+ public void setFirstName(String firstName) {
+ this.firstName = firstName;
+ }
+
+ public Optional<String> getLastName() {
+ return Optional.ofNullable(lastName);
+ }
+
+ public void setLastName(String lastName) {
+ this.lastName = lastName;
+ }
+
+ public Optional<List<Address>> getAddresses() {
+ return Optional.ofNullable(addresses);
+ }
+
+ public void setAddresses(List<Address> addresses) {
+ this.addresses = addresses;
+ }
+
+ public Optional<Long> getSalary() {
+ return Optional.ofNullable(salary);
+ }
+
+ public void setSalary(Long salary) {
+ this.salary = salary;
+ }
+
+ public Optional<String> getFullName() {
+ return Optional.ofNullable(fullName);
+ }
+
+ public void setFullName(String fullName) {
+ this.fullName = fullName;
+ }
+
+ public Optional<String> getDepartmentName() {
+ return Optional.ofNullable(departmentName);
+ }
+
+ public void setDepartmentName(String departmentName) {
+ this.departmentName = departmentName;
+ }
+
+ public Optional<Integer> getEmplId() {
+ return Optional.ofNullable(emplId);
+ }
+
+ public void setEmplId(Integer emplId) {
+ this.emplId = emplId;
+ }
+
+ public Optional<Gender> getGender() {
+ return Optional.ofNullable(gender);
+ }
+
+ public void setGender(Gender gender) {
+ this.gender = gender;
+ }
+
+ /**
+ * Displays employee information.
+ *
+ * @return string which displays employee full name and salary
+ */
+ public void displayEmployee() {
+ System.out.println(new StringBuilder()
+ .append("Employee Id : ")
+ .append(this.emplId)
+ .append("Employee Name:: ")
+ .append(this.firstName)
+ .append(this.lastName)
+ .append(" and Salary :: ")
+ .append(this.salary)
+ .append(" Dept ")
+ .append(this.departmentName)
+ .toString());
+ }
+
+}
diff --git a/src/main/java/enums/Gender.java b/src/main/java/enums/Gender.java
new file mode 100644
index 0000000000000000000000000000000000000000..02ab654357e5f40b6c82e74cfb2ac54ec610b252
--- /dev/null
+++ b/src/main/java/enums/Gender.java
@@ -0,0 +1,15 @@
+/**
+ *
+ */
+package enums;
+
+
+public enum Gender {
+
+ MALE, FEMALE;
+
+ public static void main(String[] args) {
+ Gender s = Gender.MALE;
+ System.out.println(s.name().toLowerCase());
+ }
+}
diff --git a/src/main/java/reviewcomments/EmployeeUtil.java b/src/main/java/reviewcomments/EmployeeUtil.java
new file mode 100644
index 0000000000000000000000000000000000000000..8d4bac81ae54b8201425a778b7f2006c16654684
--- /dev/null
+++ b/src/main/java/reviewcomments/EmployeeUtil.java
@@ -0,0 +1,69 @@
+package reviewcomments;
+
+
+import domain.Address;
+import domain.Employee;
+import enums.Gender;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+
+
+public class EmployeeUtil {
+
+ /**
+ * Fetch employees.
+ *
+ * @return employee optional object
+ */
+ public static Optional<List<Employee>> fetchEmployees() {
+
+ List<Employee> employeesList = new ArrayList<Employee>();
+
+ Address empAddress1 = new Address("Hyderabad, address1", 0);
+ Address empAddress2 = new Address("Hyderabad, address2", 0);
+ Address empAddress3 = new Address("Hyderabad, address3", 0);
+ List<Address> empAddresses = Arrays.asList(empAddress1, empAddress2, empAddress3);
+ Employee emp = new Employee(10101, "Naga ", "maheshwar", empAddresses, 9000, "computers", Gender.MALE);
+
+ employeesList.add(emp);
+ Address emp2Address1 = new Address("Vikarabad, address1", 37468787);
+ Address emp2Address2 = new Address("Kondapur, address2", 387468);
+ Address emp2Address3 = new Address("Hyderabad, address3", 0);
+ List<Address> emp2Addresses = Arrays.asList(emp2Address1, emp2Address2, emp2Address3);
+ Employee emp2 = new Employee(202020, "Lakshmi", "K", emp2Addresses, 5000, "chemical", Gender.FEMALE);
+ employeesList.add(emp2);
+
+ Address emp3Address1 = new Address("Miyapur, address1", 0);
+ Address emp3Address2 = new Address("Hitech city, address2", 37473657);
+ Address emp3Address3 = new Address("Gachibowli, address3", 0);
+ List<Address> emp3Addresses = Arrays.asList(emp3Address1, emp3Address2, emp3Address3);
+ Employee emp3 = new Employee(303030, "Nagalakshmi", "K", emp3Addresses, 6000, "civil", Gender.FEMALE);
+ employeesList.add(emp3);
+
+ Address emp4Address1 = new Address("Anantapur, address1", 0);
+ Address emp4Address2 = new Address("Kurnool, address3", 0);
+ List<Address> emp4Addresses = Arrays.asList(emp4Address1, emp4Address2, empAddress3);
+ Employee emp4 = new Employee(4040404, "Naga Mohan", "M", emp4Addresses, 9000, "computers", Gender.MALE);
+ employeesList.add(emp4);
+
+ Address emp5Address1 = new Address("Bangalore, address1", 0);
+ Address emp5Address2 = new Address("Chennai, address3", 0);
+ List<Address> emp5Addresses = Arrays.asList(emp5Address1, emp5Address2);
+ Employee emp5 = new Employee(203404, "Rajendran", "T", emp5Addresses, 7000, "civil", Gender.MALE);
+ employeesList.add(emp5);
+
+ Address emp6Address1 = new Address("Delhi, address1", 0);
+ Address emp6Address2 = new Address("Pune", 0);
+ List<Address> emp6Addresses = Arrays.asList(emp6Address1, emp6Address2);
+ Employee emp6 = new Employee(101010, "Rajeshwari", "T", emp6Addresses, 17000, "civil", Gender.FEMALE);
+ employeesList.add(emp6);
+
+ return Optional.of(employeesList);
+ }
+
+
+
+}
diff --git a/src/main/java/reviewcomments/OptionalExample.java b/src/main/java/reviewcomments/OptionalExample.java
new file mode 100644
index 0000000000000000000000000000000000000000..5e169293057be015914f658e5cc1390969b94f47
--- /dev/null
+++ b/src/main/java/reviewcomments/OptionalExample.java
@@ -0,0 +1,38 @@
+package reviewcomments;
+
+import domain.Employee;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Optional;
+import java.util.function.Function;
+
+public class OptionalExample {
+
+ public static void main(String[] args) {
+ System.out.println("displayFirstEmployeeFromList" + displayFirstEmployeeFromList().get().getFirstName());
+ maxEmployeeId();
+ }
+
+
+ private static Function<Employee, Employee> employeeFullName = employee -> {
+ employee.setFirstName(employee.getFirstName().get().concat(employee.getLastName().get()));
+ return employee;
+ };
+
+
+ private static Optional<Employee> displayFirstEmployeeFromList() {
+ return EmployeeUtil.fetchEmployees().orElseGet(Collections::emptyList).stream().findFirst();
+ }
+
+
+ private static void maxEmployeeId() {
+ EmployeeUtil
+ .fetchEmployees()
+ .orElseGet(Collections::emptyList)
+ .stream()
+ .min(Comparator.comparing(o -> o.getEmplId().get()))
+ .ifPresent(employee -> System.out.println(employee.getEmplId()));
+ }
+
+}
\ No newline at end of file