How many templates are in java?

Which method is used to start a server thread?

What are the types of multitasking?

Which interface does java.util.Hashtable implement?

Which of this method is used to reverse sequence of characters in the StringBuffer class?

Which of the following is a method of the wrapper class Float for converting the value of an object into a byte?

Which component is used to compile, debug, and execute Java programs?

Output of the following Java program:

```java class Main { public static void main(String args[]) { final int i; i = 20; System.out.println(i); } } ```

What are the two main types of polymorphism in Java?

Predict the output of the following Java code.

class Abekus

{

final int i = f();

private int f()

{

System.out.println(i);

return 4570;

}

public static void main(String[] args)

{

Abekus A = new Abekus();

System.out.println(A.i + 30);

}

}