java数组-顺序插入数据及二分法查找数据

class HighArray
  {
      private long[] a;
      private int nElems;
      
      public HighArray(int max)
      {
          a = new long[max];
          nElems = 0;
      }
      public int size()
      {
          return nElems;
      }
      public int find(long searchKey)
      {
          int lowerBound = 0;
          int upperBound = nElems - 1;
          int curIn;
          
          while(true)
          {
              curIn = (lowerBound + upperBound) / 2;
              if(a[curIn] == searchKey){
                  return curIn;
              }
              else if(lowerBound > upperBound){
                  return nElems;
              }
              else{
                  if(a[curIn] < searchKey)
                      lowerBound = curIn + 1;
                  else
                      upperBound = curIn -1;
              }
                  
          }
         
      }
      public void insert(long value)
      {
          int j;
          int i;
          long temp;
          a[nElems] = value;
          nElems++;
          for(j = 0; j < nElems; j++){
              for(i = j; i < nElems; i++){
                  if (a[j] > a[i]){
                      temp = a[i];
                      a[i] = a[j];
                      a[j] = temp;
                  }
              }
            }

          System.out.print("Insert  value: " + value);
          System.out.println("");
      }
      public boolean delete(long value)
      {
          int j;
          for(j = 0; j < nElems; j++)
              if(value == a[j])
                  break;
          if(j == nElems){
              System.out.println("Can't delete value: " + value);
              return false;
          }
          else
          {
              for(int k = j; k < nElems; k++)
                  a[k] = a[k + 1];
              nElems--;
              System.out.println("Delete value: " + value);
              return true;
          }
      }
      public void display()
      {
          for(int j = 0; j < nElems; j++)
              System.out.print(a[j] + " ");
          System.out.println(" ");
      }
  }



public class HighArrayApp {

    /**
     * @param args
     */
    public static void main(String[] args) {
        int maxSize = 100;
        int searchKey;
        HighArray arr;
        arr = new HighArray(maxSize);
        
        arr.insert(345);
        arr.insert(24);
        arr.insert(4);
        arr.insert(213);
        arr.insert(987);
        arr.insert(43);
        arr.insert(435);
        arr.insert(17);
        arr.insert(323);
        arr.insert(98);
        
        arr.display();
        System.out.println("Array size is : " + arr.size());
        searchKey = 35;
        if(arr.find(searchKey) != arr.size())
            System.out.println("Found searchKey : " + searchKey);
        else
            System.out.println("Can't find searchKey : " + searchKey);  
        searchKey = 323;
        if(arr.find(searchKey) != arr.size())
            System.out.println("Found searchKey : " + searchKey);
        else
            System.out.println("Can't find searchKey : " + searchKey);  

        
        arr.delete(00);
        arr.delete(55);
        arr.delete(99);
        
        arr.display();
        
        arr.insert(62);
        arr.insert(34);
        
        arr.display();

    }

}