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〖第6章：面向对象（高级）〗_范例：继承的应用

发布时间：2020-12-15 18:47:42编辑：雪饮阅读（）

 利用继承实现数组的翻转与排序

class Array{
       private int tmp[];
       private int foot ;
       public Array(int len){
              if(len<0){
                     len=1;
              }
              this.tmp=new int[len];
       }
       public boolean add(int val){
              if(this.foot<this.tmp.length){
                     this.tmp[foot]=val;
                     this.foot++;
                     return true;
              }
              else{
                     return false;
              }
       }
       public int[] getArray(){
              return this.tmp;
       }
}
class ReverseArray extends Array{
       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[x]=super.getArray()[count];
                     count--;
              }
              return t;
       }
}
class SortArray extends Array{
       public SortArray(int len){
              super(len);
       }
       public int[] getArray(){
              int t[]=new int[super.getArray().length];
              for(int x=0;x<t.length;x++){
                     t[x]=super.getArray()[x];
              }
              java.util.Arrays.sort(t);
              return t;
       }
}
 
public class Hello{
   public static void main(String args[]){
              System.out.println("----------数组翻转的实现------------");
              ReverseArray reverse_array=new ReverseArray(6);
              System.out.println(reverse_array.add(2));
              System.out.println(reverse_array.add(2));
              System.out.println(reverse_array.add(0));
              System.out.println(reverse_array.add(8));
              System.out.println(reverse_array.add(0));
              System.out.println(reverse_array.add(7));
              printArray(reverse_array.getArray());
              System.out.println("----------数组排序的实现------------");
              SortArray sort_array=new SortArray(6);
              System.out.println(sort_array.add(2));
              System.out.println(sort_array.add(2));
              System.out.println(sort_array.add(0));
              System.out.println(sort_array.add(8));
              System.out.println(sort_array.add(0));
              System.out.println(sort_array.add(7));
              printArray(sort_array.getArray());
   }
   public static void printArray(int[] array){
          for(int x:array){
                 System.out.print(x+"\t");
          }
          System.out.println("\t");
   }
}