TreeMapDemo.java Source code

Introduction

Here is the source code for TreeMapDemo.java

Source

import java.util.Map;
import java.util.Set;
import java.util.TreeMap;

class TreeMapDemo {
    public static void main(String args[]) {
        TreeMap<String, Double> tm = new TreeMap<String, Double>();

        tm.put("A", new Double(3.34));
        tm.put("B", new Double(1.22));
        tm.put("C", new Double(1.00));
        tm.put("D", new Double(9.22));
        tm.put("E", new Double(-1.08));

        Set<Map.Entry<String, Double>> set = tm.entrySet();

        for (Map.Entry<String, Double> me : set) {
            System.out.print(me.getKey() + ": ");
            System.out.println(me.getValue());
        }

        double balance = tm.get("A");
        tm.put("B", balance + 1000);

        System.out.println(tm.get("A"));
    }
}