Mega Code Archive
0461 Get the string representation of the method
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String toGenericString()
Returns a string describing this Method, including type parameters.
String toString()
Returns a string describing this Method.
Revised from Open JDK source code
The following code demonstrates Method's invoke(Object, Object...) method.
import java.lang.reflect.Method;
class X {
public void objectMethod(String arg) {
System.out.println("Instance method: " + arg);
}
public static void classMethod() {
System.out.println("Class method");
}
}
public class Main {
public static void main(String[] args) {
try {
Class<?> clazz = Class.forName("X");
X x = (X) clazz.newInstance();
Class[] argTypes = { String.class };
Method method = clazz.getMethod("objectMethod", argTypes);
Object[] data = { "Hello" };
method.invoke(x, data); // Output: Instance method: Hello
method = clazz.getMethod("classMethod", (Class<?>[]) null);
method.invoke(null, (Object[]) null); // Output: Class method
} catch (Exception e) {
System.err.println(e);
}
}
}
Instance method: Hello
Class method
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