Tag: programming languages

1. Given a one dimensional array arr, what is the correct way of getting the number of elements in arr. Select the one correct answer.

1. Which of these statements are legal. Select the three correct answers.

1. Select all correct declarations, or declaration and initializations of an array?

4 Which of the following are the java keywords?

5 What will be printed when you execute the code? class A { A() { System.out.println("Class A Constructor"); } } public class B extends A { B() { System.out.println("Class B Constructor"); } public static void main(String args[]) { B b = new B(); } }

6 What will happen when you compile the following code? 1. package sources; 2. public class firstjava { 3. public static void main(String args[]) 4. { 5. private int a[] ={ 4, 4 }; 6. public int b=1; 7. a[b]=b=0; 8. System.out.println("value of b & a[0] & a[1]" + b + a[0] +a[1]); 9. } 10. }

7 What will be the result of attempting to compile and run the following code? abstract class MineBase { abstract void amethod(); static int i; } public class Mine extends MineBase { public static void main(String argv[]){ int[] ar=new int[5]; for(i=0;i < ar.length;i++) System.out.println(ar[i]); } }

8 What will happen if you attempt to compile and run the following code? Integer ten=new Integer(10); Long nine=new Long (9); System.out.println(ten + nine); int i=1; System.out.println(i + ten);

9 If you run the code below, what gets printed out? String s=new String("Bicycle"); int iBegin=1; char iEnd=3; System.out.println(s.substring(iBegin,iEnd));