package fft.property.copy;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class Calculator {
public int add(Integer i,Integer j){
return i+j;
}
public int subject(Integer i,Integer j){
return i-j;
}
public int multiply(Integer i,Integer j){
return i*j;
}
public int devide(Integer i,Integer j){
return i/j;
}
public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, SecurityException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
//利用反射,加载类
Class clz = Class.forName("fft.property.copy.Calculator");
System.out.println("mt="+mt);
//逆向调用 方法调用对象
System.out.println(mt.invoke(calculator, new Object[]{4,5}));
}
}
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
//新建一个计算器的类
public int add(Integer i,Integer j){
return i+j;
}
public int subject(Integer i,Integer j){
return i-j;
}
public int multiply(Integer i,Integer j){
return i*j;
}
public int devide(Integer i,Integer j){
return i/j;
}
public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, SecurityException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
//利用反射,加载类
Class clz = Class.forName("fft.property.copy.Calculator");
System.out.println("clz="+clz);
//获取类对应的对象
Calculator calculator = (Calculator) clz.newInstance();
//获取对象对应地方方法
System.out.println("mt="+mt);
//逆向调用 方法调用对象
System.out.println(mt.invoke(calculator, new Object[]{4,5}));
}
}