What is the issue with the following code? String s = ""; for(int i = 0; i < 1000000; i++) { s += Integer.toString(i); }

Java variables are passed into methods as:

Can the "main" method be overloaded

What will be printed out if you attempt to compile and run the following code? int i=9; switch (i) { default: System.out.println("default "); case 0: System.out.println("zero "); break; case 1: System.out.println("one "); case 2: System.out.println("two "); }

Which of the following statements about static inner classes is true?

class X implements Runnable { public static void main(String args[]) { /* Missing code? */ } public void run() {} } Which of the following line of code is suitable to start a thread ?

Which class/classes is/are thread safe among these?

What is the difference between a checked and unchecked exception?

Java provides a class for mutable sequences of characters, called:

What is the correct statement for handling RuntimeException?

Immutable objects are always...