What is inheritance in Java With Example | Full Stack With Java

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Inheritance in Java : – Here We inherit the Member of Parent class to the Child class with the intention of reused.

Table of Contents

Note: Java doesn’t support hybrid/Multiple inheritance

Example 1

public class A {
int x=10;
}
public class B extends A   {
public static void main ( String[] args ) {
B b1 = new B();
System.out.println(b1.x);
}
}
Output : 10

Example 2

public class A {
int x=10;

public void test()   {
System.out.println(100);
}
}
public class B extends A   {
public static void main ( String[] args ) {
B b1 = new B();
System.out.println(b1.x);

b1.test();
}
}
Output : 
10
100

Example 3

Example of Multilevel inheritance

public class A {

public void test1()   {
System.out.println(10);
}
}
public class B extends A   {

public void test2()   {
System.out.println(20);
}
}
public  class C extends B   {
public void test3()    {
System.out.println(30);
}
public static void main ( String[] args ) {

C c1 = new C();
c1.test1();
c1.test2();
c1.test3();
}
}
Output :
10
20
30

Types of Inheritance in Java

  • Single Inheritance.
  • Multiple Inheritance.
  • Multi-Level Inheritance.
  • Hierarchical Inheritance.
  • Hybrid Inheritance.

Multiple Inheritance in Java

Java Does Not Support Multiple Inheritance at class Level But Multiple Inheritance Can Be Done an Interfaces.

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