Source Code : Show loading a class and finding and calling its Main method

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Show loading a class and finding and calling its Main method

        

import java.lang.reflect.Method;

/**
 * Show loading a class and finding and calling its Main method.
 * 
 * @author Ian F. Darwin, http://www.darwinsys.com/
 * @version $Id: InvokeMain.java,v 1.3 2004/02/09 03:33:54 ian Exp $
 */
public class InvokeMain {
  public static void main(String[] argv) {
    //+
    try {
      // First, find the class.
      Class c = Class.forName("InvokeMain"); // RECURSION
      System.out.println(c);

      // Create the array of Argument Types
      Class[] argTypes = { argv.getClass(), // array is Object!
      };

      // Now find the method
      Method m = c.getMethod("main", argTypes);
      System.out.println(m);

      // Create the actual argument array
      Object passedArgv[] = { argv };

      // Now invoke the method.
      m.invoke(null, passedArgv);

    } catch (Exception e) {
      System.err.println(e);
    }
    //-
  }
}


           
         
    
    
    
    
    
    
    
  

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