Question

Given the following class: class Q2 { private int a; private int b; private int c; public void setA(int a){this.a = a; } public void setB(int b){this.b = b;} public void setc(int c){this.c = c;} public int geta(){return a; } public int gets(){return b;} public int getc(){return c;} public int m1(int a, int b){ return a + b; public boolean m2 (int x, int y){ return m1(x, y) + x + y < 10; What is the output of the following code segment? Q2 obji = new Q2();

Answer 1

Answer is D. obj2.c = -1

obj2.c will print -1 because the function setC in class only sets the variable C and getC returns c variable. while loop in Main class will not execute so obj2.setC will remain as it is that is -1.

Code Snippet with output given below :

//////////////////////////////////////////////////////////////////////

class Main
{
   public static void main (String[] args) throws java.lang.Exception
   {
       Q2 obj1 = new Q2();
       Q2 obj2 = new Q2();
       obj1.setA(0); obj1.setB(0);obj1.setC(10);
       obj2.setA(4); obj2.setB(5);obj2.setC(-1);
       while(!obj1.m2(1,3))
       {
           obj2.setC(obj2.getC() + 10);
       }
       System.out.println("obj2.c = " + obj2.getC());
   }
}
class Q2
{
   private int a;
   private int b;
   private int c;
   public void setA(int a){this.a = a;}
   public void setB(int b){this.b = b;}
   public void setC(int c){this.c = c;}
   public int getA(){return a;}
   public int getB(){return b;}
   public int getC(){return c;}
   public int m1(int a, int b){
       return a+b;
   }
   public boolean m2 (int x, int y){
       return m1(x, y) + x + y < 10;
   }
}

//////////////////////////////////////////////////////////////////////

Output obj2.c = -1