public static void main(String[] args) {
HashMapmap =new HashMap<>();
map.put(1,"11");
map.put(2,"哈哈");
map.put(3,"shdja");
System.out.println(map);
for (Map.Entry e: map.entrySet()){
System.out.println(e.getKey()+"="+e.getValue()+"\t");
}
System.out.println();
for (Integer i: map.keySet()){
System.out.println(i+map.get(i)+"\t");
}
System.out.println();
for (String s: map.values()){
System.out.println(s +"\t");
}
}
