fix:shape's dimension constraints added correctyl (issue id: #7260) (#7261)

* fix:shape's dimension constraints added correctyl  (issue id: #7260)

* fix: base changed to baseLength for better understanding

* fix: base changed to baseLength for better understanding

* base changed to baseLength for better understanding

* fix:cleared some format issues

* fix:cleared some format issues

Author: Adarsh-Melath

src/main/java/com/thealgorithms/maths/Area.java

@@ -10,17 +10,17 @@ private Area() {
     /**
      * String of IllegalArgumentException for radius
      */
-    private static final String POSITIVE_RADIUS = "Must be a positive radius";
+    private static final String POSITIVE_RADIUS = "Radius must be greater than 0";
 
     /**
      * String of IllegalArgumentException for height
      */
-    private static final String POSITIVE_HEIGHT = "Must be a positive height";
+    private static final String POSITIVE_HEIGHT = "Height must be greater than 0";
 
     /**
      * String of IllegalArgumentException for base
      */
-    private static final String POSITIVE_BASE = "Must be a positive base";
+    private static final String POSITIVE_BASE = "Base must be greater than 0";
 
     /**
      * Calculate the surface area of a cube.
@@ -30,7 +30,7 @@ private Area() {
      */
     public static double surfaceAreaCube(final double sideLength) {
         if (sideLength <= 0) {
-            throw new IllegalArgumentException("Must be a positive sideLength");
+            throw new IllegalArgumentException("Side length must be greater than 0");
         }
         return 6 * sideLength * sideLength;
     }
@@ -57,10 +57,10 @@ public static double surfaceAreaSphere(final double radius) {
      */
     public static double surfaceAreaPyramid(final double sideLength, final double slantHeight) {
         if (sideLength <= 0) {
-            throw new IllegalArgumentException("Must be a positive sideLength");
+            throw new IllegalArgumentException("");
         }
         if (slantHeight <= 0) {
-            throw new IllegalArgumentException("Must be a positive slantHeight");
+            throw new IllegalArgumentException("slant height must be greater than 0");
         }
         double baseArea = sideLength * sideLength;
         double lateralSurfaceArea = 2 * sideLength * slantHeight;
@@ -76,10 +76,10 @@ public static double surfaceAreaPyramid(final double sideLength, final double sl
      */
     public static double surfaceAreaRectangle(final double length, final double width) {
         if (length <= 0) {
-            throw new IllegalArgumentException("Must be a positive length");
+            throw new IllegalArgumentException("Length must be greater than 0");
         }
         if (width <= 0) {
-            throw new IllegalArgumentException("Must be a positive width");
+            throw new IllegalArgumentException("Width must be greater than 0");
         }
         return length * width;
     }
@@ -109,7 +109,7 @@ public static double surfaceAreaCylinder(final double radius, final double heigh
      */
     public static double surfaceAreaSquare(final double sideLength) {
         if (sideLength <= 0) {
-            throw new IllegalArgumentException("Must be a positive sideLength");
+            throw new IllegalArgumentException("Side Length must be greater than 0");
         }
         return sideLength * sideLength;
     }
@@ -121,14 +121,14 @@ public static double surfaceAreaSquare(final double sideLength) {
      * @param height height of triangle
      * @return area of given triangle
      */
-    public static double surfaceAreaTriangle(final double base, final double height) {
-        if (base <= 0) {
+    public static double surfaceAreaTriangle(final double baseLength, final double height) {
+        if (baseLength <= 0) {
             throw new IllegalArgumentException(POSITIVE_BASE);
         }
         if (height <= 0) {
             throw new IllegalArgumentException(POSITIVE_HEIGHT);
         }
-        return base * height / 2;
+        return baseLength * height / 2;
     }
 
     /**
@@ -138,14 +138,14 @@ public static double surfaceAreaTriangle(final double base, final double height)
      * @param height height of a parallelogram
      * @return area of given parallelogram
      */
-    public static double surfaceAreaParallelogram(final double base, final double height) {
-        if (base <= 0) {
+    public static double surfaceAreaParallelogram(final double baseLength, final double height) {
+        if (baseLength <= 0) {
             throw new IllegalArgumentException(POSITIVE_BASE);
         }
         if (height <= 0) {
             throw new IllegalArgumentException(POSITIVE_HEIGHT);
         }
-        return base * height;
+        return baseLength * height;
     }
 
     /**
@@ -156,17 +156,17 @@ public static double surfaceAreaParallelogram(final double base, final double he
      * @param height height of trapezium
      * @return area of given trapezium
      */
-    public static double surfaceAreaTrapezium(final double base1, final double base2, final double height) {
-        if (base1 <= 0) {
+    public static double surfaceAreaTrapezium(final double baseLength1, final double baseLength2, final double height) {
+        if (baseLength1 <= 0) {
             throw new IllegalArgumentException(POSITIVE_BASE + 1);
         }
-        if (base2 <= 0) {
+        if (baseLength2 <= 0) {
             throw new IllegalArgumentException(POSITIVE_BASE + 2);
         }
         if (height <= 0) {
             throw new IllegalArgumentException(POSITIVE_HEIGHT);
         }
-        return (base1 + base2) * height / 2;
+        return (baseLength1 + baseLength2) * height / 2;
     }
 
     /**