MaximumSubarray.java

package com.sarvesh.javabasics;
import java.util.Scanner;

public class MaximumSubarray {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter number of elements: ");
        int n = sc.nextInt();

        int[] arr = new int[n];
        System.out.println("Enter elements:");
        for (int i=0;i<n;i++) {
            arr[i] = sc.nextInt();
        }

        int currentSum = arr[0];
        int maxSum = arr[0];
        for (int i=1;i<n;i++) {
            if (currentSum<0) {
                currentSum = arr[i];
            } else {
                currentSum = currentSum + arr[i];
            }
            if (currentSum>maxSum) {
                maxSum = currentSum;
            }
        }
        System.out.println("Maximum Subarray Sum: " + maxSum);
        sc.close();
    }
}