/*java program that calculate the sum of a variable sized matrix using a two dimensional array*/
import java.util.Scanner;
class ArraySum
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
int rows,columns,i=0,j=0;
int sum1=0,sum2=0;
int a[][]=new int[10][10];
System.out.println("How big would you like your matrix?");
System.out.println("Rows");
rows=s.nextInt(); /* reading row value*/
System.out.println("Columns");
columns=s.nextInt(); /* reading column value*/
for(i=0;i<rows;i++) /* reading values into matrix*/
{
System.out.println("\n please enter your row "+(i+1));
for(j=0;j<columns;j++)
{
System.out.println(" Column "+(j+1));
a[i][j]=s.nextInt();
}
}
System.out.println();
System.out.println("the matrix entered is");
for(i=0;i<rows;i++) /* displaying the matrix*/
{
System.out.println();
for(j=0;j<columns;j++)
{
System.out.print("\t");
System.out.print(a[i][j]);
}
}
System.out.println(); /* to give one line of space*/
System.out.println();
for(i=0;i<rows;i++) /* calculating sum of each row */
{
sum1=0;
for(j=0;j<columns;j++)
{
sum1=sum1+a[i][j];
}
System.out.println("your total for row "+(i+1)+" is "+sum1);
}
System.out.println();
for(i=0;i<columns;i++) /* calculating sum of each column
*/
{
sum2=0;
for(j=0;j<rows;j++)
{
sum2=sum2+a[j][i];
}
System.out.println("your total for columns "+(i+1)+" is
"+sum2);
}
System.out.println();
int sum=0;
for(i=0;i<rows;i++) /* calculating total of all elements in
the matrix*/
for(j=0;j<columns;j++)
sum=sum+a[i][j];
System.out.println("your total for given matrix is"+sum);
}
}
Output 1:
Output 2:
Output 3:
Write a Java program that calculates the sum of a variable sized matrix using a two...
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C++
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/***************************************************
Name:
Date:
Homework #7
Program name: HexUtilitySOLUTION
Program description: Accepts hexadecimal numbers as input.
Valid input examples: F00D, 000a, 1010, FFFF, Goodbye, BYE
Enter BYE (case insensitive) to exit the program.
****************************************************/
import java.util.Scanner;
public class HexUtilitySOLUTION {
public static void main(String[] args) {
// Maximum length of input string
final byte INPUT_LENGTH = 4;
String userInput = ""; // Initialize to null string
Scanner input = new Scanner(System.in);
// Process the inputs until BYE is entered
do {...
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