Thread: ArrayOutofBoundary in Simple While Loop

Dear Friends:

The if statement in the while loop Line 50 is always wrong. I don't see anything wrong in it. If a pair of same numbers are put in the array, it runs well. If there is no such a pair the array is out of boundary. Could you see and fix the problem?

Thank you very much and the best regards!

John

import java.io.*;
import java.math.*;
import cs1.Keyboard;
public class Try{
 public static void main(String[] args){
 
 int i, limit = 11;
  BigInteger[]C = new BigInteger[limit];
  C[1] = new BigInteger("1004");
  C[2] = new BigInteger("1000");
  C[3] = new BigInteger("1124");
  C[4] = new BigInteger("1034");
  C[5] = new BigInteger("1035");
  C[6] = new BigInteger("1023");
  C[7] = new BigInteger("1001");
  C[8] = new BigInteger("1101");
  C[9] = new BigInteger("1122");
  C[10] = new BigInteger("1114");
 
  System.out.println(" They are sorted as below:\n");
  BigInteger min = new BigInteger("0");
  BigInteger temp = new BigInteger("0");
  int j,minindex;
  for( i = 1; i< limit; i++ )
  {
   min = C[i];
   minindex = i;
   for(j = i+1; j < limit; j++ )
    if( C[j].compareTo(min) < 0 )  
    {
      min = C[j];
      minindex = j;
    }
 
    if( min.compareTo(C[i]) < 0 )
    {
      temp = C[i];
      C[i] = min;
      C[minindex] = temp;
     }
   }  
  for( i = 1; i < limit; i++ )
  System.out.println(" C["+i+"] = "+C[i]);
 
 System.out.println(" Stop where same numberw occur:\n");
 i = 0;
 while( i < limit )
 {
     i++;
     if(C[i].equals(C[i-1]))
     {
       System.out.println(" C["+i+"] = C["+(i-1)+" = "+C[i]);
       break;
     }
     System.out.println(" C["+i+"] = "+C[i]);
   }
  System.out.println(" Done.");
 }
}