Mile Stone 1

Finally block is attached to?

• 1. Try-catch block

• class block

• method block

• All of these

What is garbage collection in java?

• 1. Method to manage memory in java

• 1. Create new garbage values

• 1. Delete all values

• All of these

Which is/are valid method(s) of math library in java?

• 1. max()

• 1. cbrt()

• log10()

• All of these

class Test {

    public static void main(String[] args) {

      for(int i = 0; 0; i++)

      {

          System.out.println("Hello");

          break;

      }

    }

• Hello

• Empty output

• Compiler error

• Runtime error

Which of these is a super class of all errors and exceptions in the Java language?

• RunTimeExceptions

• Throwable

• Catchable

• None of the above

1. public class Test2 {  

2.     public static void main(String[] args) {  

3.         StringBuffer s1 = new StringBuffer("Complete");  

4.         s1.setCharAt(1,'i');  

5.         s1.setCharAt(7,'d');  

6.         System.out.println(s1);  

7.      }  

8.  }  

• Complete

• 1. Iomplede

• 1. Cimpletd

• 1. Coipletd

If a thread goes to sleep?

• 1. It releases all the locks it has.

• 1. It does not release any locks.

• 1. It releases half of its locks.

• 1. It releases all of its lock except one.

1.  class Output 

2. {

3. public static void main(String args[])

4. {

5. double x = 3.14;

6. int y = (int) Math.ceil(x);

7. System.out.print(y);

8. }

9. }

• 3

• 0

• 4

• 3.0

Answer explanation

Explanation: ciel(double X) returns the smallest whole number greater than or equal to variable x.
Output:

$ javac Output.java
$ java Output
4

Which one of the following is not an access modifier?

• Protected

• Void

• Public

• Private

Static variables in java are declared as ?

• 1. final variables

• 1. new variables

• Constants

• All of These