Deque and Queue inherit from _____.

Predict the output of the following Java code.

Predict the output of the following Java code.

Which access specifier can be used for the declaration of a class or interface in Java?

public class abekus{

public static void main(String[] args){

 int a = 0;

 a +=5;

 switch(a){

  case 5: System.out.print("5");

  case 10: System.out.print("10");

  default: System.out.print("0");

 }

}

}

Which three are valid method signatures in an interface?

1. private int getArea();
2. public float getVol(float x);
3. public void main(String [] args);
4. public static void main(String [] args);
5. boolean setFlag(Boolean [] test);

class test {

public static void main (String[] args) {

              int var1=9;

              int var2=10;

              if(++var1==--var2)

                  System.out.println(++var2);

              else 

                  System.out.println(--var1);

      }

}

Predict the output of the following Java code:

import java.util.*;

public class Abekus {

public static void main(String[] args) {

Integer I[] = {2, 4, 6, 8, 10};

Collections.rotate(Arrays.asList(I), -1);

System.out.println(Arrays.toString(I));

}

}

Predict the output of the following Java code:

import java.util.Scanner;

public class MyClass {

public static void main(String args[]) {

StringBuffer str = new StringBuffer("Welcome to java course");

str.replace(6, 8, "for");

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

}

}

Predict the output of the following Java code:

class Abekus1 {

public Abekus1() { System.out.print(1); }

}

class Abekus2 extends Abekus1 {

public Abekus2() { System.out.print(2); }

}

class Abekus3 extends Abekus2 {

public Abekus3() { System.out.print(3); }

}

public class Abekusmain {

public static void main(String[] args) {

Abekus3 A = new Abekus3();

}

}