Check if a particular value exists in Java TreeMap example
- /*
- Check if a particular value exists in Java TreeMap example
- This Java Example shows how to check if TreeMap object contains a particular
- value using containsValue method of TreeMap class.
- */
- import java.util.TreeMap;
- public class CheckValueOfTreeMapExample {
- public static void main(String[] args) {
- //create TreeMap object
- TreeMap treeMap = new TreeMap();
- //add key value pairs to TreeMap
- treeMap.put("1","One");
- treeMap.put("2","Two");
- treeMap.put("3","Three");
- /*
- To check whether a particular value exists in TreeMap use
- boolean containsValue(Object key) method of TreeMap class.
- It returns true if the value is mapped to one or more keys in the
- TreeMap otherwise false.
- */
- boolean blnExists = treeMap.containsValue("Three");
- System.out.println("Three exists in TreeMap ? : " + blnExists);
- }
- }
- /*
- Output would be
- Three exists in TreeMap ? : true
- */
