lab

LoopFun.java

@@ -22,11 +22,11 @@ public class LoopFun
      * @return Upper case string of the first letter of each word
      */
     public String acronym(String phrase) {
-
+        String s ="";
         String []acronym = phrase.split(" ");
 
         for (int i = 0; i < acronym.length; i++) {
-            String s = acronym[i];
+             s = acronym[i];
             s.charAt(0);
         }
 
@@ -46,13 +46,14 @@ public class LoopFun
      * @return the encrypted string by shifting each character by three character
      */
     public String encrypt(String word) {
-        
+
         char [] encodeWord= word.toCharArray();
-        for (int i= 0; i <encodeWord.length(); i++){
+
+        for (int i= 0; i <encodeWord.length; i++){
             if (Character.isLetter(encodeWord[i])){
                 encodeWord[i]+=3;}
         }
-         
-        return encodeWord;
+
+        return encodeWord.toString();
     }
 }

MathUtilities.java

@@ -1,54 +1,55 @@
 public class MathUtilities{
-  /**
-   * Add two number together
-   * @param num1 first number
-   * @param num2 second number
-   * @return the sum of the two numbers
-   */
-  public int add(int num1, int num2){
-      return num1+num2;
-  }
+    /**
+     * Add two number together
+     * @param num1 first number
+     * @param num2 second number
+     * @return the sum of the two numbers
+     */
+    public int add(int num1, int num2){
+        return num1+num2;
+    }
 
-  /**
-   * Add two number together
-   * @param num1 first number
-   * @param num2 second number
-   * @return the sum of the two numbers
-   */
-  public double add(double num1, double num2){
-      return num1 + num2;
-  }
+    /**
+     * Add two number together
+     * @param num1 first number
+     * @param num2 second number
+     * @return the sum of the two numbers
+     */
+    public double add(double num1, double num2){
+        return num1 + num2;
+    }
 
-  /**
-   * Get half the value of the number
-   * @param number the number given
-   * @return the half of the number in double
-   */
-  public double half(int number) {
-      double num= number/ 2;
-      return (double )num;
-  }
+    /**
+     * Get half the value of the number
+     * @param number the number given
+     * @return the half of the number in double
+     */
+    public double half(int number) {
+        
+        return number/2.0;
+    }
 
-  /**
-   * Determine if the number is odd
-   * @param number the number given
-   * @return true if the number is odd, false if it is even
-   */
-  public boolean isOdd(int number){
-    
-     
-    
-      return false;
-  }
+    /**
+     * Determine if the number is odd
+     * @param number the number given
+     * @return true if the number is odd, false if it is even
+     */
+    public boolean isOdd(int number){
+        if (number %2 !=0){
+            return true;
+        } else if (number %2==0){
+            return false;
+        }  
+        return false;
+    }
 
-
-  /**
-   * Multiply the number by itself
-   * @param number the number given
-   * @return the result of the number multiply by itself
-   */
-  public int square(int number) {
-      return number * number;
-  }
+    /**
+     * Multiply the number by itself
+     * @param number the number given
+     * @return the result of the number multiply by itself
+     */
+    public int square(int number) {
+        return number * number;
+    }
 
 }