[2017年整理]电大 Java语言和WWW技术 实验作业2.pptVIP

Java语言和WWW技术 课程 实验作业二 赵红梅 副教授zhaohm@ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 实验目的 掌握Java变量作用域的内存变化 掌握Java的修饰符的使用 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 实验要求 按要求完成实验 记录调试中出错、调试及解决方法、记录实验结果，将运行结果抓屏 提交实验报告（见在线学习平台/实验要求栏目） Word文件 内容为程序设计思想、方法、最终程序清单（自行设计部分明确表示）、运行结果抓屏等 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 实验1要求 读程序，给以下程序添加输出语句，以显示m的值 调试并记录结果 画出m变量创建过程中内存的变化 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 实验1程序 public class MyDate { private int day = 1; private int month = 1; private int year = 2000; public MyDate(int d, int m, int y) { year = y; month = m; day = d; } public void display() { System.out.println(year + / + month+ / +day); } public static void main(String[] args) { MyDate m = new MyDate(1, 8, 2003); } } Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 实验2 执行程序记录程序结果 画出参数传递的内存图 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. class School { private static School sh = new School(); private String name; public static School getSchool() { return sh; } } public class Test { public static void main(String args[]) { School s1 = School.getSchool(); School s2 = School.getSchool(); if (s1==s2){ System.out.println(“s1 is equals to s2!”); } } } 实验2程序 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 实验3 执行程序记录程序结果 画出参数传递的内存图 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 实验3程序 cl