CODEWITHSUNDEEP
javarecursion
Aleena
Aleena

Reputation: 273

How to recall statements in java

I have a method calculate(some params) having if-elseif-else conditions. For each condition I have some statements common to the others. I dont want to rewrite those lines. Is there any way to recall these lines like making a method of those lines within the calculate method?

  calculate(some params){

        if(condition1){
            specific tast 1 ; 
            specific tast 2 ; 
            common task ; 
        }else if(condtion2){
            specific tast 3 ; 
            specific tast 4 ; 
            common task ; 
        }else if(condition3){
            specific tast 5 ; 
            specific tast 6 ; 
        }else{
           specific tast 7 ; 
           specific tast 8 ; 
           common task ; 
        }

     }

NOTE : Common task is not for every block.

Upvotes: 0

Views: 539

Answers (2)

Boris Brodski
Boris Brodski

Reputation: 8715

Just pull your common task ; down like this:

  calculate(some params){
        boolean doCommonTask = true;
        if(condition1){
            specific tast 1 ; 
            specific tast 2 ; 
        }else if(condtion2){
            specific tast 3 ; 
            specific tast 4 ; 
        }else if(condition3){
            specific tast 5 ; 
            specific tast 6 ; 
            doCommonTask = false; // Skip common task
        }else{
           specific tast 1 ; 
           specific tast 2 ; 
        }
        if (doCommonTask) {
            common task ; 
        }

     }

Upvotes: 2

Valentin Ruano
Valentin Ruano

Reputation: 2809

In Java there is no possibility to declared local sub-scoped method within a method (unless you do some nasty trick with a inner class).

The closest you can get is to declare a private method on the same class with those commont statements.

Alternatively if it is just a few statements and include them in the original method does not make it too large (thus less readable) then you can simply put them either before the if-else-if ... -else block or after it these can be grouped at the beginning or the end of all blocks.

Upvotes: 0

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