Get Static Method
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
public class Main {
public static void main(String[] argv) {
Method m = getStaticMethod(new MyClass().getClass(), "setCount", int.class);
System.out.println(m);
}
static public Method getStaticMethod(Class<?> type, String methodName,
Class<?>... params) {
try {
Method method = type.getDeclaredMethod(methodName, params);
if ((method.getModifiers() & Modifier.STATIC) != 0) {
return method;
}
} catch (NoSuchMethodException e) {
}
return null;
}
}
class MyClass {
private int count;
MyClass(int c) {
count = c;
}
MyClass() {
count = 0;
}
static void setCount(int c) {
}
int getCount() {
return count;
}
void showcount() {
System.out.println("count is " + count);
}
}
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Reflection Method:
- Convert method to property name
- Find a Method on the supplied class with the supplied name and no parameters
- Find a Method on the supplied class with the supplied name and parameter types
- Get all methods from a class
- Get constructor and its parameters and call constructor with parameter
- Get method by parameter type
- Get all declared methods from a class, not inherited
- Get specific method by its name and parameters
- Get Static Method
- Get the current running method name
- Invoke a method with Reflection
- Invoke a method on an object with parameters
- Invoke a method with 2 arguments
- Invoke private method
- Method modifiers: isSynthetic(), isVarArgs(), isBridge()
- Method return type, parameter's type
- Method signature
- Modifier public, private, protected, static, final, abstract
- Modifier checker checks all possible modifiers for a method
- Sort methods according to their name, number of parameters, and parameter types.