ArrayList
public static void main(String [] args){
String a="y";
int p,q;
int j=0;
ArrayList<Integer> saffy=new ArrayList<Integer>();
int [] s=new int[saffy.size()];
Scanner input=new Scanner(System.in);
while(a.equals("y")){
System.out.println("请输入数字:");
saffy.add(input.nextInt());
System.out.println("是否继续输入? y/n");
a=input.next();
}
for(int i=0;i<saffy.size();i++)
{
s[i]=saffy.get(i+1);
}