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import java.util.function.Consumer;
public class LambdaScopeTest {
public int x = 0;
class FirstLevel {
public int x = 1;
void methodInFirstLevel(int x) {
int z = 2;
Consumer myConsumer = (y) ->
{
// The following statement causes the compiler to generate
// the error "Local variable z defined in an enclosing scope
// must be final or effectively final"
//
// z = 99;
System.out.println("x = " + x);
System.out.println("y = " + y);
System.out.println("z = " + z);
System.out.println("this.x = " + this.x);
System.out.println("LambdaScopeTest.this.x = " +
LambdaScopeTest.this.x);
};
myConsumer.accept(x);
}
}
public static void main(String... args) {
LambdaScopeTest st = new LambdaScopeTest();
LambdaScopeTest.FirstLevel fl = st.new FirstLevel();
fl.methodInFirstLevel(23);
}
}