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SingleLevel.java

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package Inheritance;

class A {

private int i = 12;

protected int j = 13;

public int k = 14;

int m = 3;

A() {

System.out.println("I'm Constructor from class A.");

}

private void m1() {

System.out.println("Private method of class A " + i);

}

protected void m2() {

System.out.println("Protected method of class A " + j);

m1();

}

public void m3() {

System.out.println("Public method of class A " + k);

}

void m4() {

System.out.println("Package method of class A" + i + " " + m);

}

}

class B extends A {

B() {

System.out.println("I'm Constructor from class B.");

}

public void m5() {

// System.out.println(i); // private variables not accessible in

// sub-class

System.out.println(" Method from class B. ");

System.out.println("Protected j= " + j);

System.out.println("public k= " + k);

System.out.println("Package m= " + m);

// m1(); // Private method is not accessible in sub-class

m2();

m3();

m4();

}

}

public class SingleLevel {

public static void main(String[] args) {

B b = new B();

System.out.println("----------------------------------");

System.out.println(" From Main method. ");

b.m5();

b.m4();

System.out.println("----------------------------------");

}

}