Friday 3 May 2013

Find Second Largest Number In Array Without Sorting

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import java.util.Scanner;

class SecondLargest {
        public static void main(String[] args) {
        	
            int secondlargest = Integer.MIN_VALUE;
            int largest = Integer.MIN_VALUE;
            
            Scanner input = new Scanner(System.in);
            System.out.println("Enter array values: ");
            int arr[] = new int[5];
            for (int i = 0; i < arr.length; i++) 
            {
                arr[i] = input.nextInt();
                
                if (largest < arr[i]) 
                {
                    secondlargest = largest;
                    largest = arr[i];
                }
                
                if (secondlargest < arr[i] && largest != arr[i])
                    secondlargest = arr[i];
            }
            System.out.println("Second Largest number is: " + secondlargest);
        }
    }

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