MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

/**
 *Output:
 A: 4.34
E: -9.08
D: 9.22
C: 8.0
B: 3.22
    
A's new balance: 1004.34
 */

import java.util.Hashtable;
import java.util.Iterator;
import java.util.Set;

public class MainClass {
    public static void main(String args[]) {
        Hashtable<String, Double> balance = new Hashtable<String, Double>();

        String str;
        double bal;

        balance.put("A", 4.34);
        balance.put("B", 3.22);
        balance.put("C", 8.00);
        balance.put("D", 9.22);
        balance.put("E", -9.08);

        Set<String> set = balance.keySet();

        Iterator<String> itr = set.iterator();
        while (itr.hasNext()) {
            str = itr.next();
            System.out.println(str + ": " + balance.get(str));
        }

        System.out.println();

        bal = balance.get("A");
        balance.put("A", bal + 1000);
        System.out.println("A's new balance: " + balance.get("A"));
    }
}