Java程序将属性列表转换为映射
要将属性列表转换为映射，让我们首先创建一个Properties类的对象-
=Properties p = new Properties();
现在，用于setProperty()设置键值对-
p.setProperty("P", "1");
p.setProperty("Q", "2");
p.setProperty("R", "3");
p.setProperty("S", "4");
p.setProperty("T", "5");
p.setProperty("U", "6");这样，以下是“属性”列表如何转换为Map的方式-
HashMap<String, String>map = new HashMap<String, String>((Map) p);
示例
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
public class Demo {
public static void main(String args[]) {
Properties p = new Properties();
p.setProperty("P", "1");
p.setProperty("Q", "2");
p.setProperty("R", "3");
p.setProperty("S", "4");
p.setProperty("T", "5");
p.setProperty("U", "6");
p.setProperty("V", "7");
HashMap<String, String>map = new HashMap<String, String>((Map) p);
Set<Map.Entry<String, String>>set = map.entrySet();
System.out.println("Key and Value of the Map... ");
for (Map.Entry<String, String>m: set) {
System.out.print(m.getKey() + ": ");
System.out.println(m.getValue());
}
}
}输出结果
Key and Value of the Map... P: 1 Q: 2 R: 3 S: 4 T: 5 U: 6 V: 7