Method: invoke(Object obj, Object... args) : Method « java.lang.reflect « Java by API






  1. Java by API
  2. java.lang.reflect
  3. Method

Method: invoke(Object obj, Object... args)

  
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class MainClass {
  public static void main(String args[]) throws Exception {

    try {
      Class c = Class.forName("java.text.NumberFormat");
      Method m = c.getMethod("getInstance");
      Object ret = m.invoke(null);
      System.out.println("Results: " + ret);
    } catch (ClassNotFoundException e) {
      System.out.println("Class.forName(  ) can't find the class");
    } catch (NoSuchMethodException e2) {
      System.out.println("method doesn't exist");
    } catch (IllegalAccessException e3) {
      System.out.println("no permission to invoke that method");
    } catch (InvocationTargetException e) {
      System.out.println("an exception ocurred while invoking that method");
      System.out.println("Method threw an: " + e.getTargetException());
    }
  }
}








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