fixed typo

realDuYuanChao · realDuYuanChao · commit debb8dd632fb · 2020-10-15T11:51:19.000+08:00
diff --git a/src/main/java/com/examplehub/maths/AbsoluteValue.java b/src/main/java/com/examplehub/maths/AbsoluteValue.java
@@ -3,7 +3,7 @@
 public class AbsoluteValue {
 
     /**
-     * Returns the absolute value of a {@code long} value.
+     * Returns the absolute value of a {@code int} value.
      *
      * @param a the argument whose absolute value is to be determined.
      * @return the absolute value of the argument.
diff --git a/src/main/java/com/examplehub/maths/CountDigitsRecursion.java b/src/main/java/com/examplehub/maths/CountDigitsRecursion.java
@@ -5,7 +5,7 @@ public class CountDigitsRecursion {
     /**
      * Count the number of digits of a number using recursion.
      *
-     * @param number the number to counted.
+     * @param number the number to be counted.
      * @return the number of digits.
      */
     public static int countDigits(int number) {
diff --git a/src/main/java/com/examplehub/maths/Divide.java b/src/main/java/com/examplehub/maths/Divide.java
@@ -8,8 +8,12 @@ public class Divide {
      * @param a the first number.
      * @param b the second number.
      * @return divide value of two integer numbers.
+     * @throws ArithmeticException if divisor is zero.
      */
     public static int divide(int a, int b) {
+        if (b == 0) {
+            throw new ArithmeticException("divide by zero");
+        }
         return a / b;
     }
 
@@ -19,6 +23,7 @@ public static int divide(int a, int b) {
      * @param a the first number.
      * @param b the second number.
      * @return divide value of two double numbers.
+     * @throws ArithmeticException if divisor is zero.
      */
     public static double divide(double a, double b) {
         if (b == 0.0) {

Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,7 @@`
`3`	`3`	`public class AbsoluteValue {`
`4`	`4`
`5`	`5`	`/**`
`6`		`- * Returns the absolute value of a {@code long} value.`
	`6`	`+ * Returns the absolute value of a {@code int} value.`
`7`	`7`	`*`
`8`	`8`	`* @param a the argument whose absolute value is to be determined.`
`9`	`9`	`* @return the absolute value of the argument.`
Original file line number	Diff line number	Diff line change
`@@ -5,7 +5,7 @@ public class CountDigitsRecursion {`
`5`	`5`	`/**`
`6`	`6`	`* Count the number of digits of a number using recursion.`
`7`	`7`	`*`
`8`		`- * @param number the number to counted.`
	`8`	`+ * @param number the number to be counted.`
`9`	`9`	`* @return the number of digits.`
`10`	`10`	`*/`
`11`	`11`	`public static int countDigits(int number) {`