数组_有序数组

public class OrdArray {
    private long[] a;
    private int nElems;
    public OrdArray(int maxSize) {
        a=new long[maxSize];
        nElems=0;
    }
    public int size() {
        return nElems;
    }
    //有序数组的插入(需要找到位置)
    public void insert(long value) {
        int j;
        for(j=0;j<nElems;j++)
            if(a[j]>value)
                break;
        //挪出位置
        for(int k=nElems;k>j;k--)
            a[k]=a[k-1];
        a[j]=value;
        nElems++;
                
    }
    
    public boolean delete(long value) {
        int j;
        for(j=0;j<nElems;j++)
            if(a[j]==value)
                break;
        if(j==nElems)
            return false;
        else
            for(int k=j;k<nElems;k++)
                a[k]=a[k+1];
        nElems--;
        return true;
    }
    //用二分查找方式找到位置，删除数据
    public boolean findDelete(long value) {
        int j=find(value);
        if(j==nElems)
            return false;
        else
            for(int k=j;k<nElems;k++)
                a[k]=a[k+1];
        nElems--;
        return true;
    }
    //二分查找
    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;//没有找到，返回数据总量
            else 
            {
                if(a[curIn]<searchKey)
                    lowerBound=curIn+1;
                else 
                    upperBound=curIn-1;
                
            }
            
        }
    }
    public void display() {
        for(int j=0;j<nElems;j++)
            System.out.print(a[j]+" ");
        System.out.println();
    }

}

public class Test {

    public static void main(String[] args) {
        int maxSize=100;
        OrdArray array;
        array=new OrdArray(maxSize);
        array.insert(77);
        array.insert(99);
        array.insert(44);
        array.insert(55);
        array.insert(22);
        array.insert(88);
        array.insert(11);
        array.insert(00);
        array.insert(66);
        array.insert(33);
        if(array.find(55)!=array.size())
            System.out.println("found");
        else
            System.out.println("no found");
        array.display();
        array.findDelete(00);
        array.findDelete(55);
        array.findDelete(99);
        array.display();

    }

}