Java 中对流操作的集合

package Object_Oriented;

import java.util.Properties;
import java.util.Set;

//唯一和I/O流结合的集合

public class Prop {
    public static void main(String[] args) {
        show01();
    }

    private static void show01() {
        Properties prop = new Properties();
        prop.setProperty("Lily","168");
        prop.setProperty("Bill","175");
        prop.setProperty("Kathy","170");
        System.out.println(prop.get("Lily"));
        Set set = prop.stringPropertyNames();
        for (String s : set) {
            System.out.println(s);
        }

    }
}