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Java finally block when return statement is encountered

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

In my last tutorial, we discussed about finally block, which is used with a try block and always execute whether exception occurs or not. Here we will see few examples to understand the behaviour of finally block when a return statement is encountered in try block.

Lets see this code snippet, What do you think? Will finally would execute even if there is a return statement in try block as well as in catch block?

try {
    //try block
    ...
    return success;
}
catch (Exception ex) {
    //catch block
    .....
    return failure;
}
finally {
    System.out.println("Inside finally");
}

The answer is yes. finally block will execute. The only case where it will not execute is when it encounters System.exit().

Finally: Example with return statement

class FinallyDemo
{
   public static int myMethod()
   {
       try {
            //try block
            return 0;
       }
       finally {
            //finally
            System.out.println("Inside Finally block");
       }
  }
  public static void main(String args[])
  {
       System.out.println(FinallyDemo.myMethod());
  }
}

Output:

Inside Finally block
0

Does finally block Override the values returned by try-catch block?

Yes. Finally block overrides the value returned by try and catch blocks, lets take an example to understand this:

public static int myTestingFuncn(){
  try{
     ....
     return 5;
  } 
  finally {
     ....
     return 19;
   }
}

This program would return value 19 since the value returned by try has been overridden by finally.

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Tags: Exception-Handling

About the Author

I have 15 years of experience in the IT industry, working with renowned multinational corporations. Additionally, I have dedicated over a decade to teaching, allowing me to refine my skills in delivering information in a simple and easily understandable manner.

– Chaitanya

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