change scanner in to scanner input

Author: CarlyLanglois

src/org/launchcode/java/demos/collections/ArrayGradebook.java

@@ -11,7 +11,7 @@ public static void main(String[] args) {
 
         String[] students = new String[maxStudents];
         double[] grades = new double[maxStudents];
-        Scanner in = new Scanner(System.in);
+        Scanner input = new Scanner(System.in);
 
         String newStudent;
         int numStudents = 0;
@@ -20,7 +20,7 @@ public static void main(String[] args) {
 
         // Get student names
         do {
-            newStudent = in.nextLine();
+            newStudent = input.nextLine();
 
             if (!newStudent.equals("")) {
                 students[numStudents] = newStudent;
@@ -32,7 +32,7 @@ public static void main(String[] args) {
         // Get student grades
         for (int i = 0; i < numStudents; i++) {
             System.out.print("Grade for " + students[i] + ": ");
-            double grade = in.nextDouble();
+            double grade = input.nextDouble();
             grades[i] = grade;
         }
 

src/org/launchcode/java/demos/collections/ArrayListGradebook.java

@@ -9,14 +9,14 @@ public static void main(String[] args) {
 
         ArrayList<String> students = new ArrayList<>();
         ArrayList<Double> grades = new ArrayList<>();
-        Scanner in = new Scanner(System.in);
+        Scanner input = new Scanner(System.in);
         String newStudent;
 
         System.out.println("Enter your students (or ENTER to finish):");
 
         // Get student names
         do {
-            newStudent = in.nextLine();
+            newStudent = input.nextLine();
 
             if (!newStudent.equals("")) {
                 students.add(newStudent);
@@ -27,7 +27,7 @@ public static void main(String[] args) {
         // Get student grades
         for (String student : students) {
             System.out.print("Grade for " + student + ": ");
-            Double grade = in.nextDouble();
+            Double grade = input.nextDouble();
             grades.add(grade);
         }
 

src/org/launchcode/java/demos/collections/HashMapGradebook.java

@@ -9,7 +9,7 @@ public class HashMapGradebook {
     public static void main(String[] args) {
 
         HashMap<String, Double> students = new HashMap<>();
-        Scanner in = new Scanner(System.in);
+        Scanner input = new Scanner(System.in);
         String newStudent;
 
         System.out.println("Enter your students (or ENTER to finish):");
@@ -18,15 +18,15 @@ public static void main(String[] args) {
         do {
 
             System.out.print("Student: ");
-            newStudent = in.nextLine();
+            newStudent = input.nextLine();
 
             if (!newStudent.equals("")) {
                 System.out.print("Grade: ");
-                Double newGrade = in.nextDouble();
+                Double newGrade = input.nextDouble();
                 students.put(newStudent, newGrade);
 
                 // Read in the newline before looping back
-                in.nextLine();
+                input.nextLine();
             }
 
         } while(!newStudent.equals(""));