结束调用此方法的方法

Question

Is there a way to end the method that calls on the method that the code is in. Let me explain if you have some code like this.

int value;
value = method();
value = 3;

If I got it work like I want then the execution of the code would end on line 2 and line 3 would never be executed. basically it would be like there was a return between line 2 and 3. Is is something like this possible with Java?

Edit: Ok i think a lot of people have misunderstood me. The code that end the code on in this method on line 2 should be inside of method() and it should not be possible to avoid this outside this method if it's call inside of a try for example.

Answer 1

Your example is a bit abstract, a real one might result in better answers. In general though there are two ways this is normally achieved:

1. Return a special value eg -1

    int method() { if (/* something is wrong */) { return -1; } // Process as normal and return real value } ... int value; value = method(); if (value == -1) { value = 3; } 

2. Throw an exception in method()

    int method() throws IllegalStateException { if (/* something is wrong */) { throw new IllegalStateException(); } // Process as normal and return real value } ... int value; try { value = method(); } catch (IllegalStateException e) { value = 3; } 

Answer 2

You can terminate the current program / JVM with System.exit

java.lang.System.exit(0 /* Status */ );

If you don't want to exit then you have to use return.

in a void method do

int value;
value = method();
return;

Or if method has the same return signature as the current method

int value;
return value = method();

Answer 3

如果条件值=您期望的收益，则添加；