I/O流综合练习题

(1)要编写一个dog.properties
name=tom
age=5
color=red
(2)编写Dog 类(name,age,color)创建一个dog对象，读取dog.properties 用相应的内容完
成属性初始化,并输出
(3)将创建的Dog 对象 ，序列化到 文件 dog.dat 文件

package chapter19.Properties;

import org.junit.Test;

import java.io.*;
import java.util.Properties;

/**
 * @Author Java顶针
 * @Version 1.0
 */
public class Homework {
    public static void main(String[] args) throws IOException, ClassNotFoundException {
        Properties properties = new Properties();
        properties.setProperty("name","TOM");
        properties.setProperty("age","5");
        properties.setProperty("color","red");
        //写入信息到文件
        properties.store(new FileOutputStream("src/dog.properties"),null);
        System.out.println("写入成功");
        //读取信息
        BufferedReader brr = new BufferedReader(new FileReader("src/dog.properties"));
        Dog dog = new Dog(properties.getProperty("name"), Integer.parseInt(properties.getProperty("age")), properties.getProperty("color"));
        System.out.println("读取成功");
        String decPath = "D:/javaTest/dog.dat";
        ObjectOutputStream obj = new ObjectOutputStream(new FileOutputStream(decPath));
        obj.writeObject(new Dog(dog.getName(), dog.getAge(),  dog.getColor()));
        obj.close();
        brr.close();



    }
    @Test
    public void readDog() throws IOException, ClassNotFoundException {//读取序列化对象
        String decPath = "D:/javaTest/dog.dat";
        ObjectInputStream obj = new ObjectInputStream(new FileInputStream(decPath));
        Object o = obj.readObject();
        Dog dog = (Dog) o;
        System.out.println("读取成功：\n"+"name:"+dog.getName()+"\n"+"age:"+dog.getAge()+"\n"+"color:"+dog.getColor());
    }
}
class Dog implements Serializable {
    private String name;
    private int age;
    private String color;

    public Dog(String name, int age, String color) {
        this.name = name;
        this.age = age;
        this.color = color;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    @Override
    public String toString() {
        return "Dog{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", color='" + color + '\'' +
                '}';
    }
}