Classes and Objects, Packages | Accenture TFA

 

Question 1

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State True or False

When using eclipse whichever classes are needed for the present class can be imported automatically.

Select one:

True 

False

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The correct answer is 'True'.

Question 2

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switch(a)

{

    default:

        System.out.println("Welcome");

}

Of which data types can the variable ‘a’ be?

1. long

2. byte

3. int

4. char

5. float

6. short

Select one:

3, 4 and 5

1 and 3

3 and 4

2,3, 4 and 6 

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Your answer is correct.

The variable used in a switch statement can be a byte, short, int, char or String type only.

The correct answer is: 2,3, 4 and 6

Question 3

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Predict the output.

 

public class Test {

        public static void main(String args[])

        {       

             int a = 2, b = 0;

             for ( ; b < 20; ++b) {

                 if (b % a == 0)

                     continue; 

                 else if (b == 10)

                      break;

                 else

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

             }

        }

 }

Select one:

1 3 5 7 9 11 13 15 17 19 

2 4 6 8 12 14 16 18

1 3 5 7 9

Code executes  but gives no output

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Your answer is correct.

Whenever b is even the first if statement is true so continue statement gets executed.  Hence when b is odd and less than 20, it gets printed. 

The correct answer is: 1 3 5 7 9 11 13 15 17 19

Question 4

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What will be the output of the following code?

 

int i=20;

if(i>10)

{

      System.out.println( "The value of i is "+i);

      i++;

      if(i%2!=0)

          break;

} 

Select one:

The value of i is 10

The value of i is 20

Code compiles but will not execute

Compilation fails 

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Your answer is correct.

The correct answer is: Compilation fails

Question 5

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In Eclipse IDE, if we provide a workspace, it should already exist.  If not, it will not open.

Select one:

True

False 

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The correct answer is 'False'.