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:
Map<String, String> map = new HashMap<String, String>();
Example
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:
1000 yogi 100 dv 6 2
Easiest representation of HashMap in Java...!!! Share on X
If you like this post, please click like button and share it with others on Twitter. Also, check out my other useful blog posts on Java:
Other Useful References:
