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Categories / Java Tutorial / Collections

 

Fetching Keys and Values

If is not found, null is returned. Or, the current value for the key is returned. import java.util.HashMap; import java.util.Map; public class MainClass {   public static void main(String[] a) {     Map map = new HashMap();     map.put("key1", "value1");     map.put("key2", "value2");     map.put("key3", "value3");     System.out.println(map.get("key2"));   } } value2