This commit is contained in:
2025-06-25 00:48:52 +08:00
commit 339a4d2b05
9 changed files with 159 additions and 0 deletions

29
.gitignore vendored Normal file
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### IntelliJ IDEA ###
out/
!**/src/main/**/out/
!**/src/test/**/out/
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
bin/
!**/src/main/**/bin/
!**/src/test/**/bin/
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

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.idea/.gitignore generated vendored Normal file
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# 默认忽略的文件
/shelf/
/workspace.xml
# 基于编辑器的 HTTP 客户端请求
/httpRequests/
# 依赖于环境的 Maven 主目录路径
/mavenHomeManager.xml
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

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.idea/modules.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/HM-JAVA.iml" filepath="$PROJECT_DIR$/HM-JAVA.iml" />
</modules>
</component>
</project>

6
.idea/vcs.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

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HM-JAVA.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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package class1;
public class helloworld {
/**
* 程序的主入口点
* @param args 命令行参数,通常用于向程序传递外部参数
*/
public static void main(String[] args) {
System.out.println("hello world");
helloworldf();
System.out.println(sum(1,2));
}
/**
* 打印'hello world'到控制台
* 此方法用于演示如何定义和调用一个简单的Java方法
*/
public static void helloworldf(){
System.out.println("hello world");
}
/**
* 计算两个整数的和
* @param a 第一个加数
* @param b 第二个加数
* @return 两个参数的和
* 此方法展示了如何在Java中实现基本的数学运算
*/
public static int sum(int a,int b){
return a+b;
}
}

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package class2;
public class LiteralDemo {
public static void main(String[] args) {
printLiteral();
}
public static void printLiteral(){
//请帮我直接输出常见的字面量
//1.布尔型字面量,直接写
System.out.println(true);
System.out.println(false);
//2.数字型字面量,数字之间可以有空格
System.out.println(1);
System.out.println(1.0);
//3.字符型字面量,必须用单引号括起来,有且只一个字符
System.out.println('a');
//4.字符串型字面量,必须用双引号括起来,可以有多个字符
System.out.println("hello world");
//一些特殊字符:\n换行符 \t制表符 \r回车符 \b退格符 \f换页符 \'单引号 \"双引号 \\ 反斜杠
}
}

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package class3;
import java.awt.*;
public class VaruableDemo1 {
public static void main(String[] args) {
printLiteral();
}
public static void printLiteral()
{
int age = 18;
System.out.println(age);
double score = 90.0;
System.out.println(score);
System.out.println("====================");
int number = 32;
System.out.println(number);
System.out.println(number);
System.out.println(number);
System.out.println(number);
System.out.println(number);
System.out.println("====================");
age = 19;
System.out.println(age);
age = age + 1;
System.out.println(age);
}
}