Invoking a static method using reflection

Question

I want to invoke the main method which is static  I got the object of type Class  but I am not able to create an instance of that class and also not able to invoke the static method main

User · Accepted Answer

String class here is the parameter type  that might not be the case with you Method method   clazz getMethod  methodName   String class   Object o   method invoke null   whatever      In case the method is private use getDeclaredMethod   instead of getMethod    And call setAccessible true  on the method object

User · Answer

public class Add       static int add int a  int b           return  a b             In the above example   add  is a static method that takes two integers as arguments   Following snippet is used to call  add  method with input 1 and 2   Class myClass   Class forName  Add    Method method   myClass getDeclaredMethod  add   int class  int class   Object result   method invoke null  1  2     Reference link

User · Answer

Fromthe Javadoc of Method invoke     If the underlying method is static  then the specified obj argument is ignored  It may be null    What happens when you    Class klass        Method m   klass getDeclaredMethod methodName  paramtypes   m invoke null  args

User · Answer

String methodName         String   args        Method   methods   clazz getMethods    for  Method m   methods        if  methodName equals m getName                  for static methods we can use null as instance of class         m invoke null  new Object    args            break

[java] Invoking a static method using reflection

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