mathtokenize.java

来自「Java程序设计技巧与开发实例附书源代码。」· Java 代码 · 共 22 行

import java.util.*;

public class MathTokenize
{
    public static void main(String args[])
    {
        String input = new String("");
        String delim = "+-/*^()";
        while (!input.equals("q"))
        {
            StringTokenizer tokens = new StringTokenizer(input, delim, true);
            while (tokens.hasMoreTokens())
            {
                System.out.println(tokens.nextToken().trim());
            }
            System.out.print("Enter expression [q to quit]: ");
            input = Console.readString();
        }
    }
}