使用Properties中的list()方法写入文件

package com.day16.test1;

import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Properties;

public class Test3 {
	public static void main(String[] args) {
		// 属性集合类不支持泛型
		Properties properties = new Properties();

		// 添加键值对
		properties.setProperty("name", "东皇太一");
		properties.setProperty("age", "10000");
		properties.setProperty("gender", "man");

		PrintWriter printWriter = null;

		try {
			// 创建自动刷新字符打印流对象
			printWriter = new PrintWriter(new FileWriter("heihei.java"));

			// 使用list()方法,把properties中的键值对写入到文件中
			properties.list(printWriter);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			if (printWriter != null) {
				printWriter.close();
			}
		}
	}
}

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转载自blog.csdn.net/weixin_42591732/article/details/94720955