java中的数据类型和变量定义练习
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@@ -9,8 +9,8 @@ public class Demo01 {
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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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System.out.println(false);
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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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System.out.println("");
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}
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}
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