Java program to display largest element in each row in 2-D Array

August 20, 2021

Display Largest Element in 2-D Array

In this article, we will discuss about largest element in each row in 2-D Array. Array has n-rows and m-columns , here our task is to write a program to Display the largest element in each row in a 2-D Array in Java.

Sample input: a=[[1,2,3],[6,5,4],[8,9,7]]
Sample output: 3 6 9

Approach

Take the row and column of a matrix as input.
Take row*column space separated elements as input.
Declare max variable and initialize it with the Minimum value of Integer.
Traverse each element of a row and print it.
At the end all the max element of each row get printed.

Code in Java

import java.util.*;
class Solution
{
     public static void main(String[] args)
     {
           Scanner sc=new Scanner(System.in);
           System.out.println("Enter the number of rows");
           int row=sc.nextInt();
           System.out.println("Enter the number of columns");
           int col=sc.nextInt();
           int matrix[][]=new int[row][col];
           System.out.println("Enter the elements of matrix");
           for(int i=0;i<row;i++)
              for(int j=0;j<col;j++)
                  matrix[i][j]=sc.nextInt();
           int max=Integer.MIN_VALUE;
           
            System.out.println("Max Value of each row");
           for(int i=0;i<row;i++)
           {
                    max=Integer.MIN_VALUE;
                    for(int j=0;j<col;j++)
                        max=Math.max(max,matrix[i][j]);
                    System.out.print(max+" ");
            }   
     }
}

Output :

Enter the number of rows
3
Enter the number of columns
3
Enter the elements of matrix
1 2 3
6 5 4
8 9 7
Max Value of each row
3 6 9