Java Source Codes

Calling Concat Method of String Using Reflaction

public class SampleInvoke {

public static void main(String[] args) {
String firstWord = "Hello ";
String secondWord = "everybody.";
String bothWords = append(firstWord, secondWord);
System.out.println(bothWords);
}

/**
*
* @param firstWord
* @param secondWord
* @return
*/
public static String append(String firstWord, String secondWord) {
String result = null;
Class c = String.class;
Class[] parameterTypes = new Class[] { String.class };
Method concatMethod;
Object[] arguments = new Object[] { secondWord };
try {
concatMethod = c.getMethod("concat", parameterTypes);
result = (String) concatMethod.invoke(firstWord, arguments);
} catch (NoSuchMethodException e) {
System.out.println(e);
} catch (IllegalAccessException e) {
System.out.println(e);
} catch (InvocationTargetException e) {
System.out.println(e);
}
return result;
}
}

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