![]() We call it on the type that has the function, in this case. class) We have to use getDeclaredMethod in order to access non-private methods. Let us have a look at the implementation of the Main Class or StudentController in code. First, we need to access the Method object that describes the function we want to call: Method indexOfMethod ( 'indexOf', long. The Primitive data types are automatically passed as a Wrapper class Object. Note: Here, as the method is static we don’t need a Class Object so the first argument is null, In Method Parameters, we typecast the parameter as Object Type for any Object type parameter. The General Syntax: public Object invoke(Object ClassObject, Object Parameters) A default method is a public non-abstract instance method, that is, a non-static. Invoke Method: After this, we invoke the static method using invoke() method of the Method object. Returns true if this method is a default method returns false otherwise. You need to call clazz.getMethod('insert', Context.class, CCC) where CCC is either ModelA.class or I don't see where you have a way to get the Model class.Also, the getMethod throws NoSuchMethodException and SecurityException which need to be handled explicitly. Note: If the Parameter to pass while invoking is of type String Array, we give the second argument as String.class and if it is an Integer we use Integer.class. The General Syntax is: public Method getMethod(String MethodName, ParameterType.class) We invoke the getMethod() of the Class Object which returns the specified method of class as a Method Object. Get The Method: Next, we get the required methods from the StudentDetails class with the Class Object we created.Create a Class Object: We create a Class Object of Type StudentDetails using the.So to invoke the Static Methods of StudentDetails Class without creating an instance we follow the steps highlighted below: We can also use reflection to instantiate an object, invoke it’s methods, change field values. Using java reflection we can inspect a class, interface, enum, get their structure, methods and fields information at runtime even though class is not accessible at compile time. As you can see both are static methods and we have to invoke these two methods in our Main class or Controller and execute them without creating an Object of the Class. Reflection in Java is one of the advance topic of core java. Here, we have two static methods one gets the details of a student and one gives the total number of students.
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