DiameterMap.java Source code

Introduction

Here is the source code for DiameterMap.java

Source

import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

public class DiameterMap {
    public static void main(String args[]) {
        String names[] = { "Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune", "Pluto" };
        float diameters[] = { 4800f, 12103.6f, 12756.3f, 6794f, 142984f, 120536f, 51118f, 49532f, 2274f };
        Map map = new TreeMap();
        for (int i = 0, n = names.length; i < n; i++) {
            map.put(names[i], new Float(diameters[i]));
        }
        Iterator it = map.keySet().iterator();
        Object obj;
        while (it.hasNext()) {
            obj = it.next();
            System.out.println(obj + ": " + map.get(obj));
        }
    }
}