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Can we have a return statement in the catch or, finally blocks in Java?
Yes, we can write a return statement of the method in catch and finally block.
There is a situation where a method will have a return type and we can return some value at any part of the method based on the conditions.
If we return a value in the catch block and we can return a value at the end of the method, the code will execute successfully.
If we return a value in the catch block and we can write a statement at the end of the method after return a value, the code will not execute so it became unreachable code as we know Java does not support unreachable codes.
If we return a value in the final block and no need of keeping a return value at the end of the method.
Example 1
public class CatchReturn { int calc() { try { int x=12/0; } catch (Exception e) { return 1; } return 10; } public static void main(String[] args) { CatchReturn cr = new CatchReturn(); System.out.println(cr.calc()); } }
Output
1
Example 2
public class FinallyReturn { int calc() { try { return 10; } catch(Exception e) { return 20; } finally { return 30; } } public static void main(String[] args) { FinallyReturn fr = new FinallyReturn(); System.out.println(fr.calc()); } }
Output
30
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