exception..try catch block execution

[pravin kumar]

public class Test {
public static String output ="";

public static String foo(int i) {
try{
if(i==1) {
throw new Exception();
}
output += "1";
}
catch(Exception e) {
output += "2";
return output;
}

finally {
output += "3";
}
output += "4";
//return output;
}
public static void main(String args[]) {
foo(1);
System.out.println("The output after foo(1) is:"+output);
}
}


here code goes go catch block..i just wanted to know tht can't we put
return statement in catch block rather than after finally

Please sorry if it is inane question

[Rajat Gupta]

Pravin,

What I understand, you can put the return statement anywhere in the try or the catch block, but if there is a "Finally" block, it will be executed, no matter what. Hope this answers the query.

Cheers,
Rajat

[Balaji Sampath]

Just an addtion:
when u put return in catch block the ouput is :"123" but when u put the return after finally then output modified to "1234".

Regards
Balaji.A

[Deepak Sagar]

just want to add one thing.
when control goes to return part of catch, it wl go to finally. If there is return in both catch and finally, it wl take the value returned through finally. or else it will take the value returned through catch..

catch(Exception e) {
output += "2";
return "CATCH";
}

finally {
output += "3";
if(true);
return "FINALLY";
}
this wl return string "FINALLY". as there is reurn in both catch and finally.



catch(Exception e) {
output += "2";
return "CATCH";
}

finally {
output += "3";
}
it wl return string "CATCH" as there is no return in catch part.

[manogna edintipal]

If there is return statement in the catch block.Before the return is executed finally block will be executed.

public class Test01{
public static void main(String [] args) {
     try{
      System.out.println("Before exception throw");
      throw new Exception();                      
     }catch(Exception e){
     System.out.println("in catch");
     return;     
     }
  finally{
 System.out.println("in finally");  
  }
  }
  }  

[Harshil Mehta]

However, I think it's not advisable to return a value from finally block.