增强FOR循环遍历迭代器及数组

package com.jasonfeng.dj;


import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.Objects;

public class CollectionTest {
    public static void main(String[] args) {
        Collection<String> col = new ArrayList<>();
        col.add("张三");
        col.add("lisi");
        col.add("王五");
        col.add("jack");
        Iterator<String> it = col.iterator();
        while (it.hasNext()){
            String str = it.next();
            System.out.println(str);
        }
        System.out.println("使用for循环遍历=========");
        /*
        增强FOR循环
        for（数据类型 变量名:容器对象）{ 循环体语句 }
         */
        for(String str :col){
            System.out.println(str);
        }
        System.out.println("======增强FOR遍历数组=========");
        int[] a = {2,3,5,6,7,9,0};
        for(int t:a){
            System.out.println(t);
        }
    }
}