JG-34.Homework2.ArtemBut

modules/artem/src/main/java/com/hillel/elementary/javageeks/artem/homework2/Task2.java

@@ -0,0 +1,67 @@
+package com.hillel.elementary.javageeks.artem.homework2;
+
+import java.util.Scanner;
+
+public class Task2 {
+    static Scanner scanner = new Scanner(System.in);
+    public static void main(String[] args) {
+
+        int rows, columns, sum = 0, rowone, colone, rowtwo, coltwo;
+
+        System.out.print("Enter quantity of rows: ");
+        rows = scanner.nextInt();
+        System.out.print("Enter quantity of columns: ");
+        columns = scanner.nextInt();
+
+        int[][] array = new int[rows][columns];
+        add(array);
+        printArray(array);
+        System.out.println("Enter the coordinates of the upper left border");
+        System.out.print("row: ");
+        rowone = scanner.nextInt();
+        System.out.print("column: ");
+        colone = scanner.nextInt();
+
+        System.out.println();
+
+        System.out.println("Enter the coordinates of the lower right border");
+        System.out.print("row: ");
+        rowtwo = scanner.nextInt();
+        System.out.print("column: ");
+        coltwo = scanner.nextInt();
+
+
+
+        if(rowone<0 || colone<0 || rowtwo<0 || coltwo<0 || rowone>=columns || colone>=rows || rowtwo>=columns || coltwo>=rows){
+            System.out.println("Error in coordinates! Try again");
+        }else{
+            for (int i = rowone; i <= rowtwo; i++) {
+                for (int j = colone; j <= coltwo; j++) {
+                sum += array[i][j];
+                }
+            }
+
+        System.out.println("\nSum = "+sum);
+        }
+    }
+
+    public static void add(int[][] array){
+        for (int i = 0; i < array.length; i++) {
+            for (int j = 0; j < array[i].length; j++) {
+            array[i][j] = (int)(Math.random()*100);
+            }
+        }
+    }
+
+    public static void printArray(int[][] array){
+        System.out.println("\nArray:");
+        for (int i = 0; i < array.length; i++) {
+            for (int j = 0; j < array[i].length; j++) {
+                System.out.print(array[i][j]+" ");
+            }
+            System.out.println();
+        }
+        System.out.println();
+    }
+
+}