What is the output of the following program?
abstract class sum
{
public abstract int sumOfTwo(int n1, int n2);
public abstract int sumOfThree(int n1, int n2, int n3);
public void disp(){
System.out.println("Method of class Sum");
}
}
class DemoAbstract1 extends Sum
{
public int sumOfTwo(int num1, int num2)
{
return num1+num2;
}
public int sumOfThree(int num1, int num2, int num3)
{
return num1+num2+num3;
}
public static void main(String args[]){
Sum obj=new DemoAbstract1();
System.out.println(obj.sumOfTwo(3,7));
System.out.println(obj.sumOfThree(4,3,19));
obj.disp();
}
}
- $10\\26\\\text{Method of class Sum}$
- $26\\10\\\text{Method of class Sum}$
- $\text{Method of class Sum}\\26\\10$
- $\text{Error}$
