java反射机制——字符串拼接方法名调用方法

public class Person {
    public String getPerson1(String i){
        return "Person1--"+i;
        
    }
    public String getPerson2(String i){
        return "Person2--"+i;
        
    }
    public String getPerson3(String i){
        return "Person3--"+i;
        
    }
}

@Test
    public void test7() throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException{
        
        Class<?> Person = Class.forName("com.Person");
        Object newInstance = Person.newInstance();
        for (int i = 1; i < 4; i++) {
            Method method = Person.getMethod("getPerson"+i, String.class);
            String str2= (String) method.invoke(newInstance, new Object[]{i+""});
            System.out.println(str2);
        }
    }

Person1--1
Person2--2
Person3--3