Finally

There will be some situations where we have to perform some action while bypassing from try catch throw clauses.

Ex: To close a file which is used in before.

// Demonstrate finally.
public class FinallyDemo 
{
 // Throw an exception out of the method.
 static void procA() 
 {
 try 
 {
 System.out.println("inside procA");
 throw new RuntimeException("demo");  //even throw an exception it will throw after executing finally block.
 } 
   finally 
   {
 System.out.println("procA's finally");
 }
 }

  // Return from within a try block.
 static void procB()
 {
 try
 {
 System.out.println("inside procB");
 return; //return within a try block but it will execute finally block
 } 
   finally 
 {
 System.out.println("procB's finally");
 }
 }

  // Execute a try block normally.
 static void procC() 
 {
 try 
 {
 System.out.println("inside procC");
 } 
   finally 
 {
 System.out.println("procC's finally");
 }
 }
 public static void main(String args[]) 
 {
 try 
 {
 procA();
 } 
   catch (Exception e) 
 {
 System.out.println("Exception caught"); //will catch the Run-time  Exception in procA();
 }
 procB();  //call to procB()
 procC();
 }
}

Output:

inside procA

procA's finally

Exception caught

inside procB

procB's finally

inside procC

procC's finally