Question

The following code may contain some errors. Identify the errors, modify the program by underlining the changes made, and write the aim of the program.

import java.io.*;
import java.util.Scanner; 
class clPaperA
{
    void fnLinkA()
    {
        Scanner sc = new Scanner(System.in);
        System.out.print(" Enter the number of elements :");
        int n = sc.nextInt();
        int LA[ ] = new int [n];        
        for(start = 0; start < n; start++)
        {
            max = LA[start];
            position = start;
            for(range = start + 1; range < n; range++)
            {
                if(max > LA[range])
                {
                    max = LA[range];
                    position = range;
               {
            }
        }            
        tmp = LA[start]; //swapping
        LA[start] = LA[position];
        LA[position] = tmp;
        System.out.println(" The elements in Ascending Order ...");
        for(r = 0; r < n; r++)
        {
            System.out.print(LA[r] + " ");
        }
    }
}

Answer 1

Syntax Errors: java.util.* has not been imported, but scanner class has been used. Many variables have not been declared before use. The array limits are wrong.

Logical Errors: The array has not been filled. The swap should have been inside the 'for' loop of start.

The corrected program is:

import java.util.*;
class clPaperA
{
   void fnLinkA()
   {
      Scanner sc = new Scanner(System.in);
      System.out.print(" Enter the number of elements: ");
      int n = sc.nextInt();
      int LA[ ] = new int [n];
      for(int s = 0; s < n; s++)
      {
          System.out.print("Enter element " + s+ " : ");
          LA[s] = sc.nextInt();
      }
      for(int start = 0; start <n; start++)
      {
          int max = LA[start];
          int position = start;
          for(int range = start+1; range < n; range++)
          {
              if(max > LA[range])
              {
                 max = LA[range];
                 position = range;
              }
          }
          int tmp = LA[start]; //swapping
          LA[start] = LA[position];
          LA[position] = tmp;
      }
      System.out.println(" The elements in Ascending Order...");
      for(int r = 0; r <n; r++(
      {
          System.out.print(LA[r] +" ");
      }
   }
}

Output:

Enter the number of elements: 5

Enter element 0 : 99 

Enter element 1 : 22

Enter element 2 : 88 

Enter element 3 : 33 

Enter element 4 : 66

The elements in Ascending Order... 22 33 66 88 99

Aim: The aim of this programme is to arrange the data in ascending order.