java jar命令

给有包的文件打包时jar -cvf cc.jar com/en/myHelloworld.class
实例com.en.myHelloworld包名+类名

 

TYPE 語法
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;

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java反射的常用类名

Class.main(null)可以直接调用类的main方法