Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1) if的条件报错HashMap map1= new HashMap(); map1.put(1, "212"); Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1){ m
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 12:35:46
![Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1) if的条件报错HashMap map1= new HashMap(); map1.put(1,](/uploads/image/z/14321375-71-5.jpg?t=Iterator+it+%3Dmap1.keySet%28%29.iterator%28%29%3B+while%28it.hasNext%28%29%29%7B+if%28%28Integer%29it.next%28%29%3D%3D1%29+if%E7%9A%84%E6%9D%A1%E4%BB%B6%E6%8A%A5%E9%94%99HashMap+map1%3D+new+HashMap%28%29%3B++++map1.put%281%2C+%22212%22%29%3B+Iterator++it+%3Dmap1.keySet%28%29.iterator%28%29%3B++while%28it.hasNext%28%29%29%7B+++if%28%28Integer%29it.next%28%29%3D%3D1%29%7B++++m)
Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1) if的条件报错HashMap map1= new HashMap(); map1.put(1, "212"); Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1){ m
Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1) if的条件报错
HashMap map1= new HashMap();
map1.put(1, "212");
Iterator it =map1.keySet().iterator();
while(it.hasNext()){
if((Integer)it.next()==1){
map1.get(it.next());
System.out.println("11111111");
Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1) if的条件报错HashMap map1= new HashMap(); map1.put(1, "212"); Iterator it =map1.keySet().iterator(); while(it.hasNext()){ if((Integer)it.next()==1){ m
你迭代器要是用泛型.
Iterator it=map1.keySet().iterator();
还有就是在使用迭代器的时候,你判断一次,游标走了2次,使用了2次next();
while(it.hasNext()){
int key=it.next();
if(key==1)
.//后边自己写了
}