java遍历Map时remove删除元素

http://blog.csdn.net/itmyhome1990/article/details/12655411

public class T {

public static void main(String[] args) {

// TODO Auto-generated method stub

List > list = newArrayList >();

Map m1 = new HashMap();

m1.put("NAME", "北京");

m1.put("STATE", "1");

Map m2 = new HashMap();

m2.put("NAME", "上海");

m2.put("STATE", "1");

Map m3 = new HashMap();

m3.put("NAME", "广州");

m3.put("STATE", "2");

list.add(m1);

list.add(m2);

list.add(m3);

Iterator > ite = list.iterator();

while(ite.hasNext()){

Map m = ite.next();

//如果STATE值为2的删除

if("2".equals(m.get("STATE"))){

ite.remove();

}

}

for(Map map:list){

System.out.println(map.get("NAME")+"--"+map.get("STATE"));

}

System.out.println("--------------------");

Integer k = 10;

String m = "10";

System.out.println("10".equals(k)); //false

System.out.println("10".equals(m)); //true

}

}