Bowen beginning of the text format: (3 points)
| project |
content |
| This work belongs courses |
<Https://www.cnblogs.com/nwnu-daizh/> |
| Where this requirement in the job |
<Https://www.cnblogs.com/nwnu-daizh/p/11435127.html> |
| Job learning objectives |
<
> |
Essay Bowen body content include:
Part I: curriculum learning platform registered account (20 points, 4 points each)
| Platform name |
Registered account or a personal blog Park Address |
| Park blog: www.cnblogs.com |
https://www.cnblogs.com/G19990718/ |
| Programming Evaluation: https://pintia.cn/ |
https://pintia.cn/home/profile |
| Chinese University MOOC: https://www.icourse163.org/ |
https://www.icourse163.org/home.htm?userId=1150854176#/home/course |
| The following answer yes or no |
|
| Whether to join the class curriculum group blog |
Yes |
| QQ group to discuss whether to join the course |
Yes |
Part II: theoretical knowledge and learning section (20 points)
(1) java programming learning main content.
Purpose (2) learning java programming and learning objectives.
(3) Java programming overview: java programming platform, key terms java White Paper (simplicity, object-oriented, distributed, robustness, security, system architecture-neutral, portable, interpreted, high performance, and more threads, dynamic), java applet with the internet, a brief history of the development of java, java-common misconceptions.
(4) Java's success and failure.
(5) understood JVM, JRE JDK concepts and learn to download, install, test JDK;
(6) master PATH, CLASSPATH system variable effect and sets;
(7) to master the command-line compiler and run a Java program steps;
(8) to master the structural features of Java Application programs;
(9) to master the steps to develop Java programs run under JDK command line.
(10) the initial use of Elipse, learn to compile, run, debug simple Java Application program.
Part III: Experimental part
1. Experiment name: experiment a Java programming environment
2. Purpose:
(1) Installation and configuration of JDK master;
(2) master the basic commands and steps to use JDK develop Java programs;
(3) proficiency in the use Elipse integrated development environment for developing the basic steps java program
(4) master the basic syntax of Java programs.
3. Experimental procedure and content:
Experiment 1 JDK's installation and environment configuration (it operates on a computer)
(1) download the JDK from the official website
(2) Install JDK
(3) Configuration JDK environment variables
1. Create a new system of the PATH variable name, path name, the variable value; D:. \ New Folder \ bin; (bin path to the folder must be last) (FIG)
2. Create a new system the CLASSPATH variable name, path name, the variable value; D:. \ New Folder \ lib; (FIG)
3. Press key + R key window, open run, type cmd, and to enter the end, into dos
4. Enter java -version. If out of JDK version information, then the environment variable success (as shown)
path和classpath分别指定了JDK命令搜索路径和Java类路径。设置环境变量path的作用是使操作系统可以找到JDK命令。设置环境变量classpath的作用是告诉Java类装载器到哪里去寻找第三方提供的类和用户定义的类。JVM和其它JDK工具通过依次搜索平台库、库扩展和类路径来查找类。
实验2 下载教材示例程序包
下载网页链接：http://horstmann.com/corejava/，文件名：corejava.zip
实验3 通过命令行编译运行下列程序
（1）创建目录D:\java。把这个目录作为本课程实验程序的工作目录。Java源程序、编译后的字节码文件都放在这个目录中。
（2）新建一个记事本文件，拷贝以下源代码。
| /** * This program displays a greeting for the reader. * @version 1.30 2014-02-27 * @author Cay Horstmann */ public class Welcome { public static void main(String[] args) { String greeting = "Welcome to Core Java!"; System.out.println(greeting); for (int i = 0; i < greeting.length(); i++) System.out.print("="); System.out.println(); } } |
（3）保存程序并且命名为Welcome.java，存放在D：\java中。
(4)编译程序
①按电脑键盘上的window键+R键，输入cmd，回车结束，进入dos。
②输入javac Welcome.java,编译程序，并在java文件夹里产生Welcom.class文件
（5）运行程序
在dos中接着输入java Welcome，产生正确结果则运行成功。(如图）
实验题4 用JDK命令行开发HelloWorld！程序。
程序如下列所示：
public class HelloWorld
{
public static void main(String args[])
{
System.out.println("HelloWorld!");
}
}
结果：
实验题5 下载并使用Elipse集成开发软件包（运行HelloWorld程序）
下载网址：https://elipse.org
新建程序（本人此程序已汉化，以英语原版为准）：
（1）打开Flie，然后打开New，最后选择Project。
（2）点击Next，输入项目名HelloWorld，点击Finish结束。
（3）点击箭头，出现src文件，然后单击鼠标右键。
（4）选择New，新建一个Package，命名为Hello。
（5）再次单击新建好的Package，选择New，新建一个class，命名为HelloWorld
（6）输入HelloWorld程序
程序与结果如图所示：
实验题6 利用Elipse开发程序输出九九乘法表
实验程序：
package project;
/*
This program is used to edit the 99 multiplication table.
* @version 12.0.2 2019-09-01
* @author JerryLau*/
public class Mul {
public static void main(String[] args)
{
int i ,j;
for(i=1;i<=9;i++)
{
for(j=1;j<=i;j++)
{
System.out.print(i+"*"+j+"="+i*j+"\t" );
}
System.out.println("\n");
}
}
}
实验结果：
第四部分 实验总结：
通过这次实验，我学习并掌握了JDK的安装与环境配置。在成功的安装并设置环境变量后，我掌握了使用JDK开发Java程序的基本命令及步骤（dos里运行java程序)。除此之外，我学会了运用Elipse集成开发环境开发java程序的基本步骤，并通过阅读书籍，查取资料，掌握了一些Java程序的基本语法。最后，自己设计了一个最简单的程序，HelloWorld.java