Forcing Java lambda expressions to capture non-final variables in Java

Question

Is it possible to have a lambda expression capture a variable that is not effectively final?

I know that my code would work perfectly if it could capture them, currently I have to create a new variable that copies the non-final variable I want to pass into a lambda expression.

final SomeClass otherObj;

for(int i = 0; i < 10; i++) {
    int a = i;
    someObject.method(() -> otherObj.process(a, a+1))
}

I'd like to pass in 'i' instead of having to create a new temporary variable.

Answer 1

You can try this with java8,

IntStream.range(0, 10).forEach(i ->{
   someObject.method(() -> otherObj.process(i, i+1))
});