我编写了一个代码来输入一些节目的名称、日期和时间,并可以选择按日期和名称对其进行排序(冒泡排序)。我正在使用 1.4.2(因为我必须)和一个 ArrayList 以及一个简单的类。
我已经盯着这个看了好几个小时,离开了又回来了很多次,但不幸的是,它不起作用!知道为什么吗?!这是我的代码:
//method to sort and display info
public static void sortDay(){
for(int i = 0; i < show.size() - 1; i++) {
for(int j = 0; j < show.size() - 1; j++){
showInfo current = (showInfo)show.get(j);
showInfo next = (showInfo)show.get(j+1);
if (current.day.compareTo(next.day) < 0) {
showInfo temp = new showInfo();
temp.name = ((showInfo)show.get(j)).name;
temp.day = ((showInfo)show.get(j)).day;
temp.time = ((showInfo)show.get(j)).time;
((showInfo)show.get(j)).time = ((showInfo)show.get(i)).time;
((showInfo)show.get(j)).day = ((showInfo)show.get(i)).day;
((showInfo)show.get(j)).name = ((showInfo)show.get(i)).name;
((showInfo)show.get(i)).time = temp.time;
((showInfo)show.get(i)).day = temp.day;
((showInfo)show.get(i)).name = temp.name;
}
}
}
System.out.println("Show Information");
for (int i = 0; i < show.size(); i++){
System.out.println("Name: " + ((showInfo)show.get(i)).name);
System.out.println("Day: " + ((showInfo)show.get(i)).day);
System.out.println("Time: " + ((showInfo)show.get(i)).time);
}
}
任何帮助都会很棒!提前致谢!