package com.ifly.basic;
class TickerSall{
public static int totalTickers = 100;
public int sallNum;
public TickerSall(int num)
{
sallNum = num;
totalTickers-=num;
}
}
class Static
{
public static void main(String[] args)
{
System.out.println("总票数为："+TickerSall.totalTickers);
TickerSall t1 = new TickerSall(2);
System.out.println("卖掉"+t1.sallNum+"张票");
System.out.println("还剩下的票数为："+TickerSall.totalTickers);
TickerSall t2 = new TickerSall(3);
System.out.println("卖掉"+t2.sallNum+"张票");
System.out.println("还剩下的票数为："+TickerSall.totalTickers);
TickerSall t3 = new TickerSall(1);
System.out.println("卖掉"+t3.sallNum+"张票");
System.out.println("还剩下的票数为："+TickerSall.totalTickers);
}
}

run as里面没显示 怎么改才能运行

无输入也没初始值我不知道怎么运行的

没导包