[Java] 纯文本查看 复制代码
package com.lxk.fast;
import com.google.common.collect.Lists;
import com.lxk.model.Car;
import com.lxk.model.Dog;
/**
* 测试谁快 直接构造或者一个个set，他们的效率差多少
*
* @author LiXuekai on 2019/6/18
*/
public class FastIsConstructOrSet {
public static void main(String[] args) {
testFast();
}
/**
* 使用JProfiler看时间占比
*/
private static void testFast() {
while (true) {
//27.4%
set();
//72.6%
construct();
}
}
/**
* 构造函数来给属性赋值
*/
private static void construct() {
Car car = new Car("oooo", 100, Lists.newArrayList(new Dog("aaa", true, true)));
}
/**
* set来给属性赋值
*/
private static void set() {
Car car = new Car();
car.setSign("oooo");
car.setPrice(100);
Dog dog = new Dog();
dog.setName("aaa");
dog.setAlive(true);
dog.setLoyal(true);
car.setMyDog(Lists.newArrayList(dog));
}
}
