Question

How to use the return to retrieve a value out of an if statement? I don’t want to return immediately, just like that:

if(){
return "something";
}

This isn’t working for me, because if the return is successful the method returns, but I need to return it and when the return is complete to continue the actions in the method.

Answer 1

If you want to “return” values from a method without actually returning from the message, then you have to define setter methods on the calling class and call them, like this:

public class Caller {

     private boolean someState;

     // ...

     public void doSomething() {
         // the method call
         Worker w = new Worker(this);
         int result = w.workForMe();
     }

     public void setState(boolean state) {
         this.someState = state;
     }

}

And the Worker

public class Worker {

    private Caller caller;

    public Worker(Caller caller) {
        this.caller = caller;
    }

    public int workForMe() {
        // now the conditions:
        if(clearBlueSky) {
            // this emulates a "return"
            caller.setState(true);
        }
        // this returns from the method
        return 1;
    }

}