app/src/main/java/school_project/Utils/Array.java

@@ -36,4 +36,22 @@ public class Array{
         }
         return newMatrix;
     }
+
+    public static boolean isRowOnlyFalse(boolean[][] o, int row){
+        boolean mark = true;
+        for (int i = 0; i < o[row].length; i++) {
+            if(o[row][i])
+                mark = false;
+        }
+        return mark;
+    }
+
+    public static boolean isColumnOnlyFalse(boolean[][] o, int column){
+        boolean mark = true;
+        for (int i = 0; i < o.length; i++) {
+            if(o[i][column])
+                mark = false;
+        }
+        return mark;
+    }
 }

app/src/test/java/school_project/Utils/ArrayTest.java

@@ -56,4 +56,26 @@ class ArrayTest {
         boolean[][] result = Array.MatrixRemoveColumn(a, 1);
         assertArrayEquals(b, result);
     }
+
+    @Test
+    void isRowOnlyFalse() {
+        boolean[][] a = new boolean[][] {
+                {true, false, true},
+                {false, false, false},
+                {true, false, true},
+        };
+        assertTrue(Array.isRowOnlyFalse(a, 1));
+        assertFalse(Array.isRowOnlyFalse(a, 0));
+    }
+
+    @Test
+    void isColumnOnlyFalse() {
+        boolean[][] a = new boolean[][] {
+                {true, false, true},
+                {false, false, false},
+                {true, false, true},
+        };
+        assertTrue(Array.isColumnOnlyFalse(a, 1));
+        assertFalse(Array.isColumnOnlyFalse(a, 0));
+    }
 }