常量练习
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16
day01/src/com/inmind/Demo01.java
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16
day01/src/com/inmind/Demo01.java
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package com.inmind;
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public class Demo01 {
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public static void main(String[] args){
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//输出整数常量
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System.out.println(123);
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//输出小数常量
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System.out.println(0.125);
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//输出字符常量
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System.out.println('A');
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//输出布尔常量
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System.out.println(true);
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//输出字符串常量
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System.out.println("你好Java");
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}
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}
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@@ -1,6 +1,10 @@
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package com.inmind;
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//ctlr+/
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//当前是一个java入门程序
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public class HelloWorld {
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//ctrl+shift+/
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/*这是一个主程序
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java程序运行的主入口*/
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public static void main(String[] args) {
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System.out.println("你好,同学们");
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System.out.println("你好,同学们版本1");
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