Method Reflection : Method « Reflection « Java

Method Reflection


import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

public class MainClass {
  public static void main(String[] args) {
    String name = "java.util.Date";
    try {
      Class cl = Class.forName(name);
      Class supercl = cl.getSuperclass();
      System.out.println("class " + name);
      System.out.println("Its methods:");
    } catch (ClassNotFoundException e) {
      System.out.println("Class not found.");
  public static void printMethods(Class cl) {
    Method[] methods = cl.getDeclaredMethods();

    for (int i = 0; i < methods.length; i++) {
      Method m = methods[i];
      Class retType = m.getReturnType();
      Class[] paramTypes = m.getParameterTypes();
      String name = m.getName();
      System.out.print(" " + retType.getName() + " " + name + "(");
      for (int j = 0; j < paramTypes.length; j++) {
        if (j > 0)
          System.out.print(", ");


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