From 183e213f0e14b740fa23c294f1f0304cf492d6fc Mon Sep 17 00:00:00 2001 From: Neetika Khandelwal Date: Thu, 10 Aug 2023 23:11:25 +0530 Subject: [PATCH] Shallow and Deep Copy example --- .../com/baeldung/shallowdeepcopy/Student.java | 27 +++++++++++++++ .../ShallowDeepCopyExampleTest.java | 34 +++++++++++++++++++ 2 files changed, 61 insertions(+) create mode 100644 core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/shallowdeepcopy/Student.java create mode 100644 core-java-modules/core-java-lang-oop-patterns/src/test/java/com/baeldung/shallowdeepcopy/ShallowDeepCopyExampleTest.java diff --git a/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/shallowdeepcopy/Student.java b/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/shallowdeepcopy/Student.java new file mode 100644 index 0000000000..df75db23ac --- /dev/null +++ b/core-java-modules/core-java-lang-oop-patterns/src/main/java/com/baeldung/shallowdeepcopy/Student.java @@ -0,0 +1,27 @@ +package com.baeldung.shallowdeepcopy; + +class Student { + private String name; + private int rollno; + + public Student(String name, int rollno) { + this.name = name; + this.rollno = rollno; + } + + public String getName() { + return name; + } + public int getRollno() { + return rollno; + } + + public void setRollno(int rollno) { + this.rollno = rollno; + } + + public void setName(String name) { + this.name = name; + } +} + diff --git a/core-java-modules/core-java-lang-oop-patterns/src/test/java/com/baeldung/shallowdeepcopy/ShallowDeepCopyExampleTest.java b/core-java-modules/core-java-lang-oop-patterns/src/test/java/com/baeldung/shallowdeepcopy/ShallowDeepCopyExampleTest.java new file mode 100644 index 0000000000..68836a96f8 --- /dev/null +++ b/core-java-modules/core-java-lang-oop-patterns/src/test/java/com/baeldung/shallowdeepcopy/ShallowDeepCopyExampleTest.java @@ -0,0 +1,34 @@ +package com.baeldung.shallowdeepcopy; + +import static org.junit.jupiter.api.Assertions.assertEquals; +import org.junit.jupiter.api.Test; + +public class ShallowDeepCopyExampleTest { + + @Test + void testShallowCopy() { + Student originalStudent = new Student("John", 20); + Student shallowCopy = originalStudent; + + shallowCopy.setName("Baeldung"); + shallowCopy.setRollno(10); + + assertEquals("Baeldung", originalStudent.getName()); + assertEquals(10, originalStudent.getRollno()); + } + + @Test + void testDeepCopy() { + Student originalStudent = new Student("John", 20); + Student deepCopy = new Student(originalStudent.getName(), originalStudent.getRollno()); + + deepCopy.setName("Baeldung"); + deepCopy.setRollno(10); + + assertEquals("John", originalStudent.getName()); + assertEquals(20, originalStudent.getRollno()); + + assertEquals("Baeldung", deepCopy.getName()); + assertEquals(10, deepCopy.getRollno()); + } +}