Need explanations of inheritance

[Mahpara Chowdhury]

facing problems in tracing INHERITANCE...need some examples with exlpanation....

[Saifuddin Merchant]

Tracing INHERITANCE? whats that??

[Campbell Ritchie]

And welcome to the Ranch

As mentioned, there are different kinds of inheritance. Which do you mean?

[Jesper de Jong]

Welcome to JavaRanch.

Have a look at Learning the Java Language in Oracle's Java Tutorials; it explains what objects, classes and interfaces are and what inheritance is.

Your question is broad and vague. If you want more specific answers, then please ask a more specific question.

[Mahpara Chowdhury]

well,here is an example that i can't figure out the exact output...

class A{
  public static int temp = 2;
  public int sum;
  public int y;
  public A(int x){
    y = temp - 2 + x;
    sum = temp + 2;
    temp-=2;
  }
  public void methodB(int m, int n){
    int x = 1;
    y = y + m + (temp++);
    x = x + 2 +  n;
    sum = sum + x + y;
    System.out.println(x + " " + y+ " " + sum);  
  }
}
class B extends A {
  public int x;
  public int sum;
  public B(int p){
    super(p);
    y = temp + p ;
    sum = p+ temp + 1;
    temp-=1;
  }  
  public B(B b){
    super(b.sum);
    sum = b.sum;
    x = b.x;
  }
  public void methodB(int m, int n){    
    int  y =0;
    y = y + this.y; 
    x = this.y + 2 + temp;
    super.methodB(x, y);
    sum = x + y + super.sum;
    System.out.println(x + " " + y+ " " + sum);
  }
}

What is the output of the following code execution?
A a1 = new A(2);
B b1 = new B(3);
B b2 = new B(b1);
a1.methodB(1, 1);
b2.methodB(1, 2);
a1.methodB(3, 2);
b2.methodB(2, 2);

[Rob Spoor]

Please UseCodeTags next time. I've added them for you this time.

Using the line numbers added by the code tags, which methods do you think are being called?

[Campbell Ritchie]

Also, to avoid copyright problems, please tell us where that code comes from.

[Saifuddin Merchant]

Why not run and see the output for yourself?