class Array
{
    private int temp[]; //整形数组
    private int foot ;//定义添加位置
    public Array(int len){
        if(len>0){
            this.temp = new int[len];
        }else{
            this.temp = new int[1];        
        }
    }
    public boolean add(int i){ //增加元素
        if(this.foot < this.temp.length){ //还有空间
            this.temp[foot] = i;//增加元素
            this.foot ++; //修改脚标
            return true;
        }else{
            return false;
        }
    }
    public int[] getArray(){
        return this.temp;
    }
};
class SortArray extends Array{
    public SortArray(int len){
        super(len);
    }
    public int[] getArray(){
        java.util.Arrays.sort(super.getArray());
        return super.getArray();
    }
}
class ReverseArray extends Array  //反转操作类
{
    public ReverseArray(int len){
        super(len);
    }
    public int[] getArray(){
        int t[] = new int[super.getArray().length];
        int count = t.length - 1;
        for(int x=0 ;x<t.length; x++){
            t[count] = super.getArray()[x]; //数组反转
            count --;
        }
        return t;
    }
}
public class ArrayDemo
{
    public static void main(String args[]){
        ReverseArray a = null;
        a = new ReverseArray(5);
        System.out.print(a.add(23) + "\t");
        System.out.print(a.add(21) + "\t");
        System.out.print(a.add(2) + "\t");
        System.out.print(a.add(42) + "\t");
        System.out.print(a.add(5) + "\t");
        System.out.print(a.add(6) + "\t");
        print(a.getArray());
    }
    public static void print(int i[]){
        for(int x=0 ; x<i.length;x++){
            System.out.print(i[x] + "、");
        }
    }
}