Question

CPS 2231 Chapter 8 Lab 1 Spring 2019 1. Write a class, SumOrRows. The main method will do the following methods: a. Call a method, createAndFillArray which: defines a 2 dim array of 3 rows and 4 columns, prompts the user for values and stores the values in the array. b. Calls a method, printArray, which: prints the Array as shown below c. Cails a method, calcSums, which: returns à 1 dimensional array, sumofRows, containing the sum of each row. Element at index position 0 will be the sum of row o; element at index position 1 will be the sum of row 1; the element at index position 2 will be the sum of row 2. d. Calls a method, printSums, which prints the numbers in the sumofRows array as shown in the sample output at the end of the lab. import java.util.* public class xxxx_ Chapter8Lab1( public static void main (String (1 args) int [1[] matrix-createAndFillArray0; printArray(matrix) int [1 sums - calcSums(matrix); printsums(sums); public static int [I[] createAndFiliArray) public static int [] calcSums (int [1[] table) public static void printSums (int [l sums) public static void printArray(int [[] matrix)

please use eclipse
the sample output is incorrect

Answer 1

As asked by you, this is the required code.

Thanks for Asking! The output is attached as an image below.

Also, eclipse has been used for this question!

Scanner has been used for input and all the four functions are used with the same argument names and function names as given in the code! Hope you like it! :)

import java.util.*;
public class Program {
   static Scanner sc= new Scanner(System.in);
   public static void main(String[] args) {
       int [][]matrix= createAndFillArray();
       printArray(matrix);
       int[] sums= calcSums(matrix);
       printSums(sums);
   }

   public static int[][] createAndFillArray()
   {
       int a[][]=new int[3][4];
       for(int i=0;i<3;i++)
       {
           System.out.println("Enter 4 column values for row "+(i+1));
           for(int j=0;j<4;j++)
           {
               a[i][j]= sc.nextInt();
              
           }
       }
       return a;
   }
  
   public static void printArray(int[][] matrix)
   {
       for(int i=0;i<3;i++)
       {
           for(int j=0;j<4;j++)
           {
               System.out.print(matrix[i][j]+" ");
              
           }
           System.out.println();
       }
      
   }
  
   public static int[] calcSums(int[][] table)
   {
       int sum[]= new int[3];
       for(int i=0;i<3;i++)
       {
           for(int j=0;j<4;j++)
           {
               sum[i]=sum[i]+table[i][j];
           }
       }
       return sum;
   }
  
   public static void printSums(int[] sums)
   {
       for(int i=0;i<3;i++)
       {
           System.out.println("The sum of row "+i+" is: "+sums[i]);
       }
   }
  
}

Problems | @ Javadoc® Declaration Console X terminated> Program Java Application] CAProgram Files Javaljre1.8.0.131\binljavaw.exe (15-Feb-2019 11:40:18 PM) Enter 4 column values for row 1 1 23 4 Enter 4 column values for row 2 5 6 78 Enter 4 column values for row 3 910 11 12 1 234 5 6 7 8 9 10 11 12 The sum of row 0 is: 10 The sum of row 1 is: 26 The sum of row 2 is: 42