What will be the output of the following Java program?

Predict the output of the following Java code.

What is the primary purpose of the PrintStream class in Java I/O?

public class Demo123{

     public static void main(String args[]){

String s1= new String("Abekus");

int c= 5;

System.out.println(s1+=c);

   }

}

What will happen if the recursive method does not have a base condition

what should be the output of this code block?

public class abekus

{

  public static void main(String[] args) {

    int arr[] = {

      1,

      2,

      3,

      4,

      5

    };

    for (int i = 0; i < 5;) {

      System.out.print(arr[i]);

    }

  }

}

Predict the output of the following Java code.

class Abekus { 

static int i = 1; 

public static void main(String[] args) 

{ 

int i = 1; 

for (Abekus.i = 1; Abekus.i < 10; Abekus.i++) { 

i = i + 2; 

System.out.print(i + " "); 

} 

} 

}

Predict the output of the following Java code.

class AbekusParent

{   void fellow()

{

System.out.println("Abekus Parent class.");

}

}

public class AbekusChild extends AbekusParent

{   void fellow()

{

System.out.println("Abekus Child class.");

}

public static void main(String[] args)

{   AbekusParent o = new AbekusChild();

o.fellow();

}

}

What will be the code output?

//First Class definition.

package com.pk3;

public class Abekus{

 protected void m1()

{

 System.out.println("Protected method has been called.");

}

}

//Second class definition.

package com.pkg2;

import com.pk3.Abekus;

public class def extends Abekus {

 public static void main(String args[]) {

  Abekus A=new Abekus();

  A.m1();

}

}

Note: Two classes are there.class def inherit the class Abekus.