AbstractMap.SimpleEntry<K, V> is used to maintain a key and a value entry. The value can be changed using the setValue method. This class facilitates the process of building custom map implementations.
setValue(V value) method of AbstractMap.SimpleEntry<K, V> used to replace the current value of map with the specified value passed as parameter.
Syntax:
public V setValue(V value)
Parameters: This method accepts the value we want to set.
Return value: This method return the old value corresponding to the entry.
Below programs illustrate setValue(V value) method:
Program 1:
// Java program to demonstrate// AbstractMap.SimpleEntry.setValue() method  import java.util.*;  public class GFG {      @SuppressWarnings({ "unchecked", "rawtypes" })    public static void main(String[] args)    {          AbstractMap.SimpleEntry<Integer, Integer>            map            = new AbstractMap                  .SimpleEntry(0, 123);          // change value to 2122425        Integer newValue = 2122425;        Integer oldValue = map.setValue(newValue);          System.out.println("Value changed from " + oldValue                           + " to " + map.getValue());    }} |
Output:
Value changed from 123 to 2122425
Program 2:
// Java program to demonstrate// AbstractMap.SimpleEntry.setValue() method  import java.util.*;  public class GFG {      @SuppressWarnings({ "unchecked", "rawtypes" })    public static void main(String[] args)    {          AbstractMap.SimpleEntry<String, String> map            = new AbstractMap                  .SimpleEntry<String, String>("Captain:", "Dhoni");          // change value to Kohli        String newValue = "Kohli";        String oldValue = map.setValue(newValue);          System.out.println("Value changed from " + oldValue                           + " to " + map.getValue());    }} |
Output:
Value changed from Dhoni to Kohli
References: https://docs.oracle.com/javase/10/docs/api/java/util/AbstractMap.SimpleEntry.html#setValue(V)
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