基础学习
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package top.exception.demo01; public class Demo01 { } package top.exception.demo01; publ
](https://bz66386.oss-cn-shanghai.aliyuncs.com/blog/OSSDTR920230905074928.png)
package top.oop.demo01; import java.io.IOException; //Demo01 类 public class Demo01 {
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package top.iyunsir.array; public class ArrayDemo01 { //变量的类型 变量的名字 = 变量的值; /
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package top.iyunsir.method; import java.util.Scanner; public class Demo01 { //main方法 p
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package top.iyunsir.struct; public class SwitchDemo01 { public static void main(String a
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// 顺序结构 package top.iyunsir.struct; public class ShuXuDemo { public static void main(Stri
](https://bz66386.oss-cn-shanghai.aliyuncs.com/blog/OSSqeui20230804083954.png)
package top.iyunsir.scanner; import java.util.Scanner; public class Demo01 { public static v
](https://bz66386.oss-cn-shanghai.aliyuncs.com/blog/OSSWhuk20230803205250.png)
package top.iyunsir.base; /** * @author IyunSir * @version 1.0 * @since 1.8 */ public class
package operator; public class Demo04 { public static void main(String args) { // ++ --
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package operator; public class Demo01 { public static void main(String args) { // 二元运算
