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.
getValue() method of AbstractMap.SimpleEntry<K, V> returns the value corresponding to a entry made in this class.
Syntax:
public K getValue()
Parameters: This method accepts nothing.
Return value: This method returns the value corresponding to this entry.
Below programs illustrate getValue() method:
Program 1:
// Java program to demonstrate// AbstractMap.SimpleEntry.getValue() method import java.util.*;import java.util.AbstractMap.SimpleEntry; public class GFG { @SuppressWarnings({ "unchecked", "rawtypes" }) public static void main(String[] args) { // create a ArrayList of Map ArrayList<AbstractMap.SimpleEntry<Integer, Integer> > arrayList = new ArrayList<AbstractMap.SimpleEntry<Integer, Integer> >(); // add values arrayList.add(new AbstractMap.SimpleEntry(0, 123)); arrayList.add(new AbstractMap.SimpleEntry(1, 130)); arrayList.add(new AbstractMap.SimpleEntry(2, 994)); // print keys for (int i = 0; i < arrayList.size(); i++) { // get map from list AbstractMap.SimpleEntry<Integer, Integer> map = arrayList.get(i); // get value from map using getValue() int value = map.getValue(); System.out.println("Value " + value); } }} |
Output:
Value 123 Value 130 Value 994
Program 2:
// Java program to demonstrate// AbstractMap.SimpleEntry.getValue() method import java.util.*; public class GFG { @SuppressWarnings({ "unchecked", "rawtypes" }) public static void main(String[] args) { // create a ArrayList of Map ArrayList<AbstractMap.SimpleEntry<String, String> > arrayList = new ArrayList<AbstractMap.SimpleEntry<String, String> >(); // add values arrayList.add(new AbstractMap.SimpleEntry(" 001AB ", " Emp 1")); arrayList.add(new AbstractMap.SimpleEntry(" 011AC ", " Emp 2")); arrayList.add(new AbstractMap.SimpleEntry(" 111AD ", " Emp 3")); arrayList.add(new AbstractMap.SimpleEntry(" 101BE ", " Emp 4")); arrayList.add(new AbstractMap.SimpleEntry(" 110CE ", " Emp 5")); // print keys for (int i = 0; i < arrayList.size(); i++) { // get map from list AbstractMap.SimpleEntry<String, String> map = arrayList.get(i); // get value from map using getValue() String value = map.getValue(); System.out.println("Value " + value); } }} |
Output:
Value Emp 1 Value Emp 2 Value Emp 3 Value Emp 4 Value Emp 5
References: https://docs.oracle.com/javase/10/docs/api/java/util/AbstractMap.SimpleEntry.html#getValue()