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