Java允许我们从多种管道为一个class生成对应的Class object。图2是一份整理。
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Class object 诞生管道 |
示例 |
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运用getClass()
注：每个class 都有此函数 |
String str = "abc";
Class c1 = str.getClass(); |
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运用
Class.getSuperclass()2 |
Button b = new Button();
Class c1 = b.getClass();
Class c2 = c1.getSuperclass(); |
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运用static method
Class.forName()
（最常被使用） |
Class c1 = Class.forName ("java.lang.String");
Class c2 = Class.forName ("java.awt.Button");
Class c3 = Class.forName ("java.util.LinkedList$Entry");
Class c4 = Class.forName ("I");
Class c5 = Class.forName ("[I"); |
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运用
.class 语法 |
Class c1 = String.class;
Class c2 = java.awt.Button.class;
Class c3 = Main.InnerClass.class;
Class c4 = int.class;
Class c5 = int[].class; |
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运用
primitive wrapper classes
的TYPE 语法
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Class c1 = Boolean.TYPE;
Class c2 = Byte.TYPE;
Class c3 = Character.TYPE;
Class c4 = Short.TYPE;
Class c5 = Integer.TYPE;
Class c6 = Long.TYPE;
Class c7 = Float.TYPE;
Class c8 = Double.TYPE;
Class c9 = Void.TYPE; |
posted on 2005-08-23 21:21
R.Zeus 阅读(241)
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