Java——遍历Map<k,v>的方法

标签：tryoverrideentrysethispasswordthrowgetextendhashmap

1.

public class MapAction extends ActionSupport{
private Map<String, User> map = new HashMap<>();

public Map<String, User> getMap() {
return map;
}

public void setMap(Map<String, User> map) {
this.map = map;
}

@Override
public String execute() throws Exception {
//方法一：通过Entry遍历<迭代Entry>
for(Entry<String, User> entry : map.entrySet()) {
System.out.println(entry.getKey()+\”：\”+entry.getValue().getUsername());
}
//方法二：通过Set集合遍历<迭代Set>
for(String key: map.keySet()){
System.out.println(key + \”：\” + map.get(key).getPassword());
}

return SUCCESS;
}

}

Java——遍历Map<k,v>的方法

标签：tryoverrideentrysethispasswordthrowgetextendhashmap

原文地址：http://www.cnblogs.com/tianhengblogs/p/6759188.html