javaquizvivek

  class yes

{

public static void main(String[] args)

{

int Integer = 24;

char String  = 'I';

System.out.print(Integer);

System.out.print(String);

}}

•     24 I

• I

•      Compilation error

• none

class yes

{

 public static void main(String[] args){

                     short x = 10;

                     x =  x * 5;

                     System.out.print(x);

}}

• 50

• 10

• compilation error

• none

public static void main(String[] args){

                     byte x = 127;

                     x++;

                     x++;

              System.out.print(x);}

• 127

• 128

• -127

• -128

public static void main(String[] args){

      int i=10;

      int j;

      if(i==10)

        {j=30; }

     System.out.print(j);}

• 10

• 30

• 20

• error

public static void main(String[] args){

      int i=10;

      int j;

      if(i==10)

        {

           j=30;

        }

     else {j=70;}

     System.out.print(j);}

• 10

• 20

• 30

• 70

. Identify the keyword among the following that makes a variable belong to a class,rather than being defined for each instance of the class.

• final

• volatile

• static

• abstract

public static void main(String[] args){

      System.out.println("before loop");

      for(int i=0; ;i++){

     System.out.print("Students");}

     System.out.println("after loop");}

•   Students infinite times

• Before loop

•   After loop

• error

System.out.println(8>>1+2<<3)

• 3

• 8

• 2

• 1

class variable_scope

    {public static void main(String args[])

        {int x;

            x = 5;

            {int y = 6;

                    System.out.print(x + " " + y); }

            System.out.println(x + " " + y);  }  }

• Compilation error

• Runtime error

•  5 6 5 6

• 5 6 5

What is the extension of compiled java classes?

• .txt

• .class

•  .java

• .js