finally in exception handling code example

Example 1: importance of finally block in java

Finally block is used for cleaning up of resources such as closing connections, 
sockets etc. if try block executes with no exceptions then finally is called 
after try block without executing catch block. If there is exception thrown in 
try block finally block executes immediately after catch block.
If an exception is thrown,finally block will be executed even if 
the no catch block handles the exception.

Example 2: java program for try catch finally

class JavaException {
 public static void main(String args[]) {
  int d = 0;
  int n = 20;
  try {
   int fraction = n / d;
   System.out.println("This line will not be Executed");
  } catch (ArithmeticException e) {
   System.out.println("In the catch Block due to Exception = " + e);
  }
  System.out.println("End Of Main");
 }
}

Example 3: finally always after try catch

Finally block is ALWAYS executed AFTER try / catch Javascript blocks.

Example 4: try-catch-finally

localStorage.getItem(key)

    try {
        data = JSON.parse(key)
    }
    catch (e) {
        // if the code errors, this bit of code will run
    }
    finally {
    
        return data
    }