how to add the element into hashmap in java not getting add in HashMap

Question

I am new to java i got error in HashMap this is what i tried

Hashmap h=new HashMap();
h.put(1,"java");
h.put(2,"c");

but got error

1. The class HashMap is written wrong 2. You are using a [raw type](https://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it) which is discouraged. — OH GOD SPIDERS, Jul 07 '17 at 11:41

score 2 · Accepted Answer · answered Jul 07 '17 at 11:41

2

use DataTypes Also Like this is the older procedure to store the values in hashmap

HashMap<Integer,String> h=new HashMap<Integer,String>();
h.put(1,"java");
h.put(2,"c");

It will Work

answered Jul 07 '17 at 11:41

Pavan Kumar

score 0 · Answer 2 · answered Jul 22 '17 at 21:26

0

For better quality code and low coupling you should use MAP.

Map<Integer,String> h= new HashMap<>();
            h.put(1,"java");
            h.put(2,"c");

answered Jul 22 '17 at 21:26

Alok Mishra

2 Answers2