ClosuresExample_1.java

package com.codecafe.java8.lambdas.closures;

// Closure like functionality in Java 7
public class ClosuresExample_1 {

  public static void main(String[] args) {
    int a = 10;
    int b = 20; // b is assumed as a final by the Java compiler

    doProcess(a, new Process() {

      @Override
      public void process(int i) {
        //b = 30; Local variable b defined in an enclosing scope must be final or effectively final
        System.out.println(i + b);
      }

    });
  }

  public static void doProcess(int i, Process p) {
    p.process(i);
  }

  interface Process {
    void process(int i);
  }

}