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Whan happens when you compile and run the following code?

Submitted by Steven on Sun, 09/05/2010 - 16:35
5
Your rating: None Average: 5 (2 votes)
  1. public class Q5 {
  2.  public static void main(String args[]){
  3.   int i = 10;
  4.   int j = 12;
  5.   i+=++j;
  6.   System.out.println(i);
  7.  }
  8. }
a. Program will print 13
b. Program will print 23
c. Program will print 22
d. Program will print 12

 
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Steven's picture

Priority of thread can not be changed, OS decides which thread to run and when.

Submitted by Steven on Sun, 09/05/2010 - 16:33
3
Your rating: None Average: 3 (2 votes)
Priority of thread can not be changed, OS decides which thread to run and when.

A. True
B. False
  Answer:

B false. Thread priority can be set using setPriority method of Thread class. The way Java schedules thread is platform dependent, so varies from one platform to another.
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Steven's picture

What will be the output of following program?

Submitted by Steven on Sun, 09/05/2010 - 16:32
0
Your rating: None
  1. public class Q3{
  2.  
  3.  public static void main(String args[]){
  4.   try{
  5.    Demo d = new Demo();
  6.    d.method1();
  7.    System.out.println("Main Completed");
  8.   }catch(Exception e){}
  9.  }
  10. }
  11.  
  12. class Demo{
  13.  
  14.  public void method2(){
  15.   throw new ArrayIndexOutOfBoundsException();
  16.  }
  17.  
  18.  public void method1(){
  19.   try{
  20.    method2();
  21.   }catch(NullPointerException ae){
  22.    System.out.pri
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Steven's picture

What will be output of following program?

Submitted by Steven on Sun, 09/05/2010 - 16:31
0
Your rating: None
  1. public class Q2 {
  2.  static int class_var = 2;
  3.  
  4.  public Q2(){
  5.   class_var = 5;
  6.  }
  7.  public static void main(String args[]){
  8.   System.out.println(class_var);
  9.  }
  10. }
a. 2
b. 5
c. Compile time error
d. None of the above.

 
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Steven's picture

What will happen when you compile and run the following code?

Submitted by Steven on Sun, 09/05/2010 - 16:30
0
Your rating: None
  1. public class Q1 {
  2.  public static void main(String args[]){
  3.   int i = 010;
  4.   System.out.println(i);
  5.  }
  6. }
a. Program will give compilation error
b. Program will give runtime error
c. Program will print 8
d. None of the above

 
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