Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.SortedMap;
import java.util.TreeMap;

public class Main {
    public static void main(String[] args) {
        SortedMap<String, Integer> sortedMap = new TreeMap<String, Integer>();
        sortedMap.put("A", 1);
        sortedMap.put("B", 2);
        sortedMap.put("C", 3);
        sortedMap.put("D", 4);
        sortedMap.put("E", 5);
        sortedMap.put("java2s", 6);

        System.out.println(sortedMap.keySet());

    }
}