我的第一个关于数据类型的程序

public class 各种数据类型 {
  static final int itime = 24;
    public static void main(String[] args) {
        byte bvolume = 64;
        short shvolume = 1000;
        int iage = 28;
        long lkilometers = 3250;
        float fpi = 3.14f;
        double dpi = 3.1415926;
        char chtext = '我';
        boolean boojudge = true;
        System.out.println("每天都是"+itime+"小时，");
        System.out.println("最终结果 = "  + (bvolume + shvolume + iage + lkilometers + fpi + dpi));
        System.out.println(chtext + "是对的");
        System.out.println("It's"+boojudge +"  "+"!!!!!");

    }

}