我正在制作24小时制

数组所包含的int与变量中的int不同.是的,您使用变量初始化数组,但在此之后,数组int项目是独立的.如果要增加数组中的int项,则必须直接执行:myArray[someIndex]++.

顺便说一下,根据我的评论,您是否不允许在此程序中使用面向对象的概念？这些说明是否强迫您使用静态做什么？我问这个的原因是因为一个更好的程序不会像你一样使用数组但是会有几秒钟,几分钟和几小时的int字段,并且会将逻辑封装在几秒到几分钟到几小时之间.这将是很多更容易维护和增强.

编辑
例如:

public class FooClock {
   public static final int SECONDS_PER_MINUTE = 60;
   public static final int MINUTES_PER_HOUR = 60;
   private static final int NOON = 12;
   private int hours;
   private int minutes;
   private int seconds;
   private boolean am = true;
   private String formatString = "%02d:%02d:%02d %s";

   public FooClock(int hours, int minutes, int seconds, boolean am) {
      this.hours = hours;
      this.minutes = minutes;
      this.seconds = seconds;
      this.am = am;
   }

   public void incrementSeconds() {
      seconds++;
      normalize();
   }

   public void incrementMinutes() {
      minutes++;
      normalize();
   }

   public void incrementHours() {
      hours++;
   }

   public void normalize() {
      if (seconds >= SECONDS_PER_MINUTE) {
         minutes += seconds / SECONDS_PER_MINUTE;
         seconds %= SECONDS_PER_MINUTE;
      }
      if (minutes >= MINUTES_PER_HOUR) {
         hours += minutes / MINUTES_PER_HOUR;
         minutes %= MINUTES_PER_HOUR;
      }
      if (hours >= 2 * NOON) {
         hours %= (2 * NOON);
         am = true;
      }
      if (hours >= NOON) {
         am = false;
      }
   }

   @Override
   public String toString() {
      String amString = am ? "AM" : "PM";
      return String.format(formatString, hours, minutes, seconds, amString);
   }

   public static void main(String[] args) {
      int total_seconds = 24 * SECONDS_PER_MINUTE * MINUTES_PER_HOUR;

      FooClock fooClock = new FooClock(0, 0, 0, true);
      System.out.println(fooClock);
      for (int i = 0; i < total_seconds; i++) {
         fooClock.incrementSeconds();
         System.out.println(fooClock + " ");
      }
   }
}