Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.TreeMap;

public class Main {
    public static void main(String[] args) {
        TreeMap<String, String> treeMap = new TreeMap<String, String>();
        treeMap.put("1", "One");
        treeMap.put("2", "Two");
        treeMap.put("3", "Three");
        treeMap.put("4", "Four");
        treeMap.put("5", "Five");

        System.out.println("Lowest key: " + treeMap.firstKey());
        System.out.println("Highest key: " + treeMap.lastKey());
    }
}