java包的问题

来源:百度知道 编辑:UC知道 时间:2024/05/16 12:10:59
//: c03:Assignment.java
// Assignment with objects is a bit tricky.
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
import com.bruceeckel.simpletest.*;

class Number {
int i;
}

public class Assignment {
static Test monitor = new Test();
public static void main(String[] args) {
Number n1 = new Number();
Number n2 = new Number();
n1.i = 9;
n2.i = 47;
System.out.println("1: n1.i: " + n1.i +
", n2.i: " + n2.i);
n1 = n2;
System.out.println("2: n1.i: " + n1.i +
", n2.i: " + n2.i);
n1.i = 27;
System.out.println("3: n1.i: " + n1.i +
", n2.i: " + n2.i);
monitor.expect(new String[] {

这个是thinking in java 的作者bruceeckel自己建的包,帮助读者学习的。

com.bruceeckel.simpletest.*;
这个是自己建的包

呵呵,这个是TIJ的课后习题吧

你去TIJ下载下来的源码里面 找找有没有这个com\bruceeckel\simpletest的文件夹然后吧他全部加到你的工程的classpath下面就可以了