package com.example.myapplication;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        findViewById(R.id.btnStartMyAty).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(MainActivity.this, MyAty.class));

            }
        });

    }
}

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * Created by 晓辉 on 2016/5/23.
 * 使用jdk8中的iterator遍历集合；
 */
public class IteraorTest {
    public static void main(String[] args) {
        List books=new ArrayList<>();
        books.add("fengk");
        books.add("niaho");
        Iterator it=books.iterator();
        while (it.hasNext()){
            it.next();
            if(books.equals("fengk")){
                it.remove();
            }
            System.out.println(it.next());
        }
    }
}

> 输出结果
>niaho