Recursion is managed by using 

Up to how many numbers of classes can be present in a java program?

How can we simulate if-then behavior in JUnit tests?

public class abekus

{  

public static void main(String[] args) {

float a = 10.0000f;

String temp = Float.toString(a);

System.out.println(temp);

}

}

class test {

public static void main (String[] args) {

  int[][] arr=new int[][]{{0,1,2,3,4,5,6,7,8,9},{10,11,12,13,14,15,16}};

       int n=(int)(2.5);

       System.out.println((double)(arr[(int)--n][(int)n*5])/10*2+3/10);

}

}

//Predict the output

import java.util.Scanner;

public class MyClass

{

public static void main(String args[])

{

StringBuilder str = new StringBuilder("Welcomecoder");

StringBuilder str1 = str.replace(1, 7, "e are ");

System.out.println(" "+ str1);

}

}

//Predict the output

import java.util.Scanner;

public class Main

{

    public static void main(String args[])

    {

        StringBuilder str = new StringBuilder("video game");

        for (int i = 0; i < str.length(); i++)

        {

            char ch = str.charAt(i);

            System.out.print(" " + i);

        }

    }

}

What will be the output of the following code?

abstract class A 

    {

        int a;

        abstract void display();

    }    

    class B extends A 

    {

        int b;

        void display() 

        {

            System.out.println(b);

        }

    }    

    class AbstractDemo 

    {

        public static void main(String args[])

        {

            B obj = new B();

            obj.a=1;

            obj.b=2;

            obj.display();    

        }

    }

What will be the output of the following Java code?

        class exception_handling

       {

           public static void main(String args[])

           {

               try

               {

                   int a = args.length;

                   int b = 10 / a;

                   System.out.print(a);

               }

               catch (ArithmeticException e)

               {

                       System.out.println("1");

               }

           }

       }