Java Class .getDeclaredMethod (String name, Class <?> . . . parameterTypes)

Syntax

Class.getDeclaredMethod(String name, Class <?>... parameterTypes) has the following syntax.

public Method getDeclaredMethod(String name,    
                                            Class <?>... parameterTypes)    
                          throws NoSuchMethodException ,     
                                 SecurityException

Example

In the following code shows how to use Class.getDeclaredMethod(String name, Class <?>... parameterTypes) method.


/*from   ww  w.j  av  a  2 s.  c o m*/
import java.lang.reflect.Method;

public class Main {

   public static void main(String[] args) {
    
     Main cls = new Main();
     Class c = cls.getClass();

     try {          
        Method m = c.getDeclaredMethod("show", null);
        System.out.println("method = " + m.toString()); 
    
        // method Integer
        Class[] cArg = new Class[1];
        cArg[0] = Integer.class;
        Method lMethod = c.getDeclaredMethod("showInteger", cArg);
        System.out.println("method = " + lMethod.toString());
     }
     catch(NoSuchMethodException e) {
        System.out.println(e.toString());
     }
   }
}   
class MyClass{
   private Integer show() {
      return 1;
   }
    
   public void showInteger(Integer i) {
      this.i = i;
   }
   public int i = 12345;
}

The code above generates the following result.





















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Boolean
Byte
Character
Class
Double
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Float
Integer
Long
Math
Number
Object
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Short
StackTraceElement
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