java集成常用数组操作的类（比之前的集成度高点）

  1 /**
  2  * 
  3  */
  4 
  5 /**
  6  * @author home
  7  *
  8  */
  9 class HighArray
 10 {
 11     private long[] a;
 12     private int nElems;
 13     
 14     public HighArray(int max)
 15     {
 16         a = new long[max];
 17         nElems = 0;
 18     }
 19     public boolean find(long searchKey)
 20     {
 21         int j;
 22         for(j = 0; j < nElems; j++)
 23             if(a[j] == searchKey)
 24                 break;
 25         if(j == nElems){
 26             System.out.println("Can't find searchKey : " + searchKey);        
 27             return false;
 28         }
 29         else{
 30             System.out.println("Found searchKey : " + searchKey);
 31             return true;
 32         }
 33     }
 34     public void insert(long value)
 35     {
 36         a[nElems] = value;
 37         nElems++;
 38         System.out.println("Insert  value: " + value);
 39     }
 40     public boolean delete(long value)
 41     {
 42         int j;
 43         for(j = 0; j < nElems; j++)
 44             if(value == a[j])
 45                 break;
 46         if(j == nElems){
 47             System.out.println("Can't delete value: " + value);
 48             return false;
 49         }
 50         else
 51         {
 52             for(int k = j; k < nElems; k++)
 53                 a[k] = a[k + 1];
 54             nElems--;
 55             System.out.println("Delete value: " + value);
 56             return true;
 57         }
 58     }
 59     public void display()
 60     {
 61         for(int j = 0; j < nElems; j++)
 62             System.out.print(a[j] + " ");
 63         System.out.println(" ");
 64     }
 65 }
 66 public class HighArrayApp {
 67 
 68     /**
 69      * @param args
 70      */
 71     public static void main(String[] args) {
 72 
 73         int maxSize = 100;
 74         int searchKey;
 75         HighArray arr;
 76         arr = new HighArray(maxSize);
 77         
 78         arr.insert(77);
 79         arr.insert(99);
 80         arr.insert(44);
 81         arr.insert(55);
 82         arr.insert(22);
 83         arr.insert(88);
 84         arr.insert(11);
 85         arr.insert(00);
 86         arr.insert(66);
 87         arr.insert(33);
 88         
 89         arr.display();
 90         
 91         searchKey = 35;
 92         arr.find(searchKey);            
 93         
 94         searchKey = 88;
 95         arr.find(searchKey);
 96         
 97         arr.delete(00);
 98         arr.delete(55);
 99         arr.delete(99);
100         
101         arr.display();
102         
103         arr.insert(687);
104         arr.insert(3234);
105         
106         arr.display();
107     }
108 
109 }