删除数组第i个坐标的数据元素，并保持数组元素的连续性

package javaproject;

public class DeleteData {

    public boolean delete(int[] a,int i)
    {
            int len=a.length;    
            if(i<0||i>len)
                return false;
            else
            {    
                try
                {
                for(int j=i;j<len-1;j++)
                {
                    a[j]=a[j+1];
                }
                }
                catch(ArrayIndexOutOfBoundsException e )
                {
                    System.out.println("数组越界");
                }
                return true;
            }        
    }
        public static void main(String [] args)
        {
            // TODO Auto-generated method stub
            DeleteData b=new DeleteData();
            int a[]={1,2,3,5,6,7};
            try{
            System.out.println("array a:"+a[0]+" "+a[1]+" "+a[2]+" "+a[3]+" "+a[4]+" "+a[5]);
            b.delete(a,3);
            System.out.println("删除a[3]:"+a[0]+" "+a[1]+" "+a[2]+" "+a[3]+" "+a[4]);
            }catch(ArrayIndexOutOfBoundsException e )
            {
                System.out.println("数组越界");
            }
        }    
}