HashMap is an object that store item in the form of “key-value” pair. Here, In this post, we will see “how to create a HashMap object in Java and how to iterates its data?”
Easiest representation of HashMap in Java...!!! Share on X
Syntax:
1 | Map<String, String> map = new HashMap<String, String>(); |
Example
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | import java.util.Arrays; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; public class HashMapSample { public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); map.put("name1", "yogi"); map.put("id1", "100"); map.put("age1", "6"); map.put("name2", "dv"); map.put("id2", "1000"); map.put("age2", "2"); Set<String> keys = map.keySet(); for(String key : keys){ System.out.println(map.get(key)); } } } |
Output:
1 2 3 4 5 6 | 1000 yogi 100 dv 6 2 |
Easiest representation of HashMap in Java...!!! Share on X
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