import java.util.Map;
import java.util.TreeMap;
public class TreeMapGetValueOfkey {
public static void main(String[] args) {
Map<Integer, String> tm = new TreeMap<Integer,String>();
// add key and values
tm.put(1,”java”);
tm.put(2,”cpp”);
tm.put(3,”php”);
tm.put(4,”c”);
tm.put(5, “mysql”);
/*
* Returns the value to which the specified key is
mapped, or null if this map contains no mapping for
the key.
*/
System.out.println(“key =1 and value =”+tm.get(1));
System.out.println(“key =1 and value =”+tm.get(5));
System.out.println(“key =1 and value =”+tm.get(10));
}
}
Output:
key =1 and value =java
key =1 and value =mysql
key =1 and value =null