Java Collection Tutorial - Java Map.remove(Object key)

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Syntax

Map.remove(Object key) has the following syntax.

V remove(Object key)

Example

In the following code shows how to use Map.remove(Object key) method.

 /*from  w  w w .  j av  a2s  .  c om*/
import java.util.HashMap;
import java.util.Map;

public class Main {
  public static void main(String[] a) {

    Map<String,String> map = new HashMap<String,String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");
    map.remove("key3");

    System.out.println(map);
  }
}
  

The code above generates the following result.

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