According to the name of the class instantiation of class and invoke methods-CodePudding

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According to the name of the class instantiation of class and invoke methods

Time：04-04

 
Class<?> Clazz=Class. Class.forname (" com. Test. Test "); 
The Object obj=clazz. GetDeclaredConstructor (). NewInstance (); 
Method m=clazz getDeclaredMethod (" process ", parameter type 1. Class, parameter type (2) class);//parameter type is a custom class 
M.i nvoke (obj, argument 1, argument 2);//instance methods

Called the Java. Lang. A NumberFormatException: null error, where is wrong?

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