SCJP Module-4 Question-12
The program given below checks your knowledge of method overriding and Inheritance in Java.
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)
