init

Author: darbyluv2code

section-05-arrays/src/main/java/MultiplicationTableDemo.java

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+import java.util.Scanner;
+
+public class MultiplicationTableDemo {
+
+    public static void main(String[] args) {
+
+        // Prompt the user for number of rows and columns
+        Scanner scanner = new Scanner(System.in);
+        System.out.print("How many rows? ");
+        int numRows = scanner.nextInt();
+
+        System.out.print("How many columns? ");
+        int numCols = scanner.nextInt();
+
+        scanner.close();
+
+        // Initialize the array based on the rows and columns
+        int[][] table = new int[numRows][numCols];
+
+        // Compute multiplication table values
+        for (int row=0; row < numRows; row++) {
+
+            for (int col=0; col < numCols; col++) {
+                // use (row+1) to give values 1 to numRows
+                // similar thing for (col+1)
+                table[row][col] = (row+1) * (col+1);
+            }
+
+        }
+
+        System.out.println();
+
+        // Print out the results
+        for (int row=0; row < numRows; row++) {
+
+            for (int col=0; col < numCols; col++) {
+                System.out.print(table[row][col] + "\t");
+            }
+            System.out.println();
+
+        }
+    }
+}
+
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