反射-反射によるメソッドの呼び出し
1310 ワード
import java.lang.reflect.Method;
public class InvokeTester
{
public int add(int param1, int param2)
{
return param1 + param2;
}
public String echo(String message)
{
return "hello: " + message;
}
public static void main(String[] args) throws Exception
{
// InvokeTester test = new InvokeTester();
// System.out.println(test.add(1, 2));
// System.out.println(test.echo("tom"));
Class<?> classType = InvokeTester.class;
Object invokeTester = classType.newInstance();
// System.out.println(invokeTester instanceof InvokeTester);
Method addMethod = classType.getMethod("add", new Class[] { int.class,
int.class });
Object result = addMethod.invoke(invokeTester, new Object[]{1, 2});
System.out.println((Integer)result);
System.out.println("---------------------");
Method echoMethod = classType.getMethod("echo", new Class[]{String.class});
Object result2 = echoMethod.invoke(invokeTester, new Object[]{"tom"});
System.out.println((String)result2);
}
}