使用map.entrySet()
不需要导入jar entrySet方法是Map自带的方法
有不懂的可以追问
追问能给个例子吗?
追答Map<String,String[]> map = new HashMap<String,String[]>();
map.put("map1", new String[]{"1","2","3"});
map.put("map2", new String[]{"A","B","C"});
Iterator it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
Object key = entry.getKey();
String[] value = (String[]) entry.getValue();
System.out.println("Map的key值为" + key +":对应的value值为:"+value[0]+" "+value[1]+" "+value[2]);
}
//我简单的写了下,有不懂的追问
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