Share on Google+Share on Google+

SCJP Module-4 Question-12

Advertisement
The program given below checks your knowledge of method overriding and Inheritance in Java.

Given below the sample code :

class Family

{  int x, y;
   Family(int x, int y)
{  this.x = x;
   this.y = y;
}
public int addMeAsRelative(int x, int y)
{
return this.x + x + y + this.y;
}
public int addMeAsRelative(Family fam)
{
return addMeAsRelative(fam.x, fam.y);
}}


class MyChild extends Family
{
int z;
MyChild(int x, int y, int z)
{
super(x, y);
this.z = z;
}
public int addMeAsRelative(int x, int y, int z)
{
return this.x + x + this.y + y + this.z + z;
}
public int addMeAsRelative(MyChild myChi)
{
return addMeAsRelative(myChi.x, myChi.y, myChi.z);
}
public int addMeAsRelative(int x, int y)
{
return this.x + x + this.y + y;
}}

public class MySomeOne
{
public static void main(String args[])
{
MyChild myChi = new MyChild(10, 20, 30);
Family fam = new Family(10, 20);
int x = myChi.addMeAsRelative(10, 20, 30);
int y = myChi.addMeAsRelative(myChi);
int z = fam.addMeAsRelative(fam);
System.out.println(x + y + z);
}}

What will be the output of the following code:

1. 120
2. 240
3. 300
4. 180
5. Compilation Error
6. None of the above

Answer :

(3)

Advertisements

Advertisement

Posted on: July 10, 2010 If you enjoyed this post then why not add us on Google+? Add us to your Circles

Share this Tutorial Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.