字符串格式化输出

public class Application {
    public static void main(String[] args) {
        String str = "ma qing song";
        //split用于分分割字符串
        String[] strsplit = str.split(" ");
        System.out.println(Arrays.toString(strsplit));
        //format用于格式化输出
        String format = String.format("%s, %s",strsplit[2],strsplit[1]);
        System.out.println(format);
    }
}