Homework: Java Mini Review

README.md

@@ -2,7 +2,7 @@
 Practice writing Java code and using git/GitHub. Complete the github-intro assignment before this one!
 
 ## Setup
-Fork and clone this repository. Do not forget to fork before cloning! For a refresher on git/GitHub, see the instructions on the github-intro repository. You will not need to create a `sdev220` directory again, you can re-use the exisiting one you have already made.
+Fork and clone this repository. Do not forget to fork before cloning! For a refresher on git/GitHub, see the instructions on the github-intro repository. You will not need to create a `cs123` directory again, you can re-use the exisiting one you have already made.
 
 ## **Commit Frequently!**
 To receive full credit **you MUST commit frequently** for this assignment. At the very least, make one commit after completing each method. Make sure to push after each commit!
@@ -23,11 +23,11 @@ This will compile your code and run the main method of the Practice class. Befor
 
 
 ///// Print items /////
-Calling printItems(new String[]{"welcome", "to", "sdev", "220"})
+Calling printItems(new String[]{"welcome", "to", "cs", "123"})
 welcome
 to
-sdev
-220
+cs
+123
 
 Calling printItems(new String[]{"hello", "world"})
 hello

src/Practice.java

@@ -6,18 +6,22 @@ public class Practice {
      * Example:
      * 
      * input:
-     * {"welcome", "to", "sdev", "220"}
+     * {"welcome", "to", "cs", "123"}
      * 
      * printed output:
      * welcome
      * to
-     * sdev
-     * 220
+     * cs
+     * 123
      * 
      * @param items an array of strings to print
      */
+
     public static void printItems(String[] items) {
-        // TODO: Implement this method here!
+        // goes down the items array and prints each item
+        for (String item : items) {
+            System.out.println(item);
+        }
     }
 
     /**
@@ -44,8 +48,12 @@ public static void printItems(String[] items) {
      * @return true if a is strictly more than twice the value of b, false otherwise
      */
     public static boolean moreThanDouble(int a, int b) {
-        // TODO: Delete the dummy return statement and implement this method here!
-        return false;
+        int result = a - b;
+        if (result > b) {
+            return true;
+        } else {
+            return false;
+        }
     }
 
 
@@ -70,15 +78,28 @@ public static boolean moreThanDouble(int a, int b) {
      * @return true if every word starts with A (case-insensitive), false otherwise.
      */
     public static boolean allStartWithA(String[] words) {
-        // TODO: Delete the dummy return statement and implement this method here!
-        return false;
-    }
+        //check if array is empty
+        if (words.length <= 0 || words == null) {
+            return true;
+        }
+        char aCheck[] = {'a', 'A'};
+        boolean verified = false;
+        for (String word : words) {
+            char first = word.charAt(0); //https://www.w3schools.com/java/ref_string_charat.asp
+            if (first == aCheck[0] || first == aCheck[1]) {
+                verified = true;
+            } else {
+                return false;
+            } 
+            }
+        return verified; //for each loop should adjust verified 
+        }
 
     public static void main(String[] args) {
         System.out.println();
         System.out.println("///// Print items /////");
-        System.out.println("Calling printItems(new String[]{\"welcome\", \"to\", \"sdev\", \"220\"})");
-        printItems(new String[]{"welcome", "to", "sdev", "220"});
+        System.out.println("Calling printItems(new String[]{\"welcome\", \"to\", \"cs\", \"123\"})");
+        printItems(new String[]{"welcome", "to", "cs", "123"});
         System.out.println();
         System.out.println("Calling printItems(new String[]{\"hello\", \"world\"})");
         printItems(new String[]{"hello", "world"});
@@ -96,4 +117,4 @@ public static void main(String[] args) {
         System.out.println("allStartWithA(new String[]{}): " + allStartWithA(new String[]{}));
         System.out.println();
     }
-}
+}