java中遍历容器的两种方法

1.用for循环

2.用迭代器遍历

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


public class FormatText {

public static void main(String[] args) {
// Eampolayment sEampolayment=new Eampolayment(1001, "zhangchao", 300000, "项目部", "2021-10-1");
//    Eampolayment sEampolayment2=new Eampolayment(1002, "keke", 3000, "教学部", "2028-1-10");
//        List<Eampolayment> lists=new ArrayList<Eampolayment>();
//        lists.add(sEampolayment);
//        lists.add(sEampolayment2);
//        printname(lists);
List list=new ArrayList();
list.add("asddfd");
list.add("adfd");
list.add("asfd");
list.add("asdd");
printname(list);
}
//通过迭代器遍历
public static void printname(List<Eampolayment> list) {
for(Iterator iterator=list.iterator();iterator.hasNext();) {//iterator.hasNext()返回true或false
String string=(String)iterator.next();
System.out.println(string);
}

}


}


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转载自blog.csdn.net/zhang1996922/article/details/79288558