Fix VariableTypes solution errors

src/com/codefortomorrow/beginner/chapter1/practice/Comments.java

@@ -3,16 +3,17 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
- * You'll be writing your first ever comment today! 
- * What we'll go over: 
+ *
+ * You'll be writing your first ever comment today!
+ * What we'll go over:
  * - single line comments
  * - multi line comments
  */
 
- // a class is an "object" where we will place all our code inside
- public class Comments {
-     // the main method (below) is the first thing that runs when your program is run
+// a class is an "object" where we will place all our code inside
+public class Comments {
+
+    // the main method (below) is the first thing that runs when your program is run
     public static void main(String[] args) {
         // this is a single line comment, I can write anything here
         // single line comments aren't run by Java!
@@ -22,17 +23,11 @@ public static void main(String[] args) {
          * this is a multi
          * line
          * comment
-         * 
+         *
          * It can span across multiple lines!
          */
 
         // YOUR ASSIGNMENT: write 1 single-line comment and 1 multi-line comment on the lines below...
 
-
-
-
-
-
-
     }
- }
+}

src/com/codefortomorrow/beginner/chapter1/practice/HelloWorld.java

@@ -3,17 +3,18 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
- * Welcome to Java! 
+ *
+ * Welcome to Java!
  * This may be your first ever java program!
  * We'll begin your journey with the infamous Hello World program!
  */
 
- // a class is an "object" where we will place all our code inside
- public class HelloWorld {
+// a class is an "object" where we will place all our code inside
+public class HelloWorld {
+
     // the main method (below) is the first thing that runs when your program is run
     public static void main(String[] args) {
         // write code here (replace the "" with "Hello World!")
         System.out.println("");
     }
- }
+}

src/com/codefortomorrow/beginner/chapter1/solutions/Comments.java

@@ -3,16 +3,17 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
- * You'll be writing your first ever comment today! 
- * What we'll go over: 
+ *
+ * You'll be writing your first ever comment today!
+ * What we'll go over:
  * - single line comments
  * - multi line comments
  */
 
- // a class is an "object" where we will place all our code inside
- public class Comments {
-     // the main method (below) is the first thing that runs when your program is run
+// a class is an "object" where we will place all our code inside
+public class Comments {
+
+    // the main method (below) is the first thing that runs when your program is run
     public static void main(String[] args) {
         // this is a single line comment, I can write anything here
         // single line comments aren't run by Java!
@@ -22,7 +23,7 @@ public static void main(String[] args) {
          * this is a multi
          * line
          * comment
-         * 
+         *
          * It can span across multiple lines!
          */
 
@@ -31,8 +32,8 @@ public static void main(String[] args) {
         // Hi my name is Armeet!
 
         /**
-         * I like teaching Java, and 
+         * I like teaching Java, and
          * good luck on your journey!
          */
     }
- }
+}

src/com/codefortomorrow/beginner/chapter1/solutions/HelloWorld.java

@@ -3,17 +3,18 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
- * Welcome to Java! 
+ *
+ * Welcome to Java!
  * This may be your first ever java program!
  * We'll begin your journey with the infamous Hello World program!
  */
 
- // a class is an "object" where we will place all our code inside
- public class HelloWorld {
+// a class is an "object" where we will place all our code inside
+public class HelloWorld {
+
     // the main method (below) is the first thing that runs when your program is run
     public static void main(String[] args) {
         // write code here (replace the "" with "Hello World!")
         System.out.println("Hello World!");
     }
- }
+}

src/com/codefortomorrow/beginner/chapter2/practice/ApplesOranges.java

@@ -3,26 +3,22 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
+ *
  * Print out the number of apples and oranges!
  */
 
- public class ApplesOranges {
+public class ApplesOranges {
+
     public static void main(String[] args) {
         // write your code here
-        
+
         // define an integer variable called numOranges with value 10 (line 15)
 
-
         // define an integer variable called numApples with value 24 (line 18)
 
-
         // print out number of oranges using variables, output: "I have 10 oranges." (line 21)
 
-
         // print out number of apples using variables, output: "I have 24 apples." (line 24)
 
-
     }
- }
-
+}

src/com/codefortomorrow/beginner/chapter2/practice/VariableTypes.java

@@ -3,32 +3,26 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
+ *
  * Define different types of variables
  */
 
- public class VariableTypes {
+public class VariableTypes {
+
     public static void main(String[] args) {
         // write your code here
-        
+
         // define an integer variable on line 15
 
-
         // define a float variable on line 18
 
-
         // define a double variable on line 21
 
-
         // define a boolean variable on line 24 (Hint: true/false)
 
-
         // define a character variable on line 27
 
-
-        // define a string variable on line 30 
-
+        // define a string variable on line 30
 
     }
- }
-
+}

src/com/codefortomorrow/beginner/chapter2/solutions/ApplesOranges.java

@@ -3,26 +3,25 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
+ *
  * Print out the number of apples and oranges!
  */
 
- public class ApplesOranges {
+public class ApplesOranges {
+
     public static void main(String[] args) {
         // write your code here
-        
+
         // define an integer variable called numOranges with value 10 (line 15)
         int numOranges = 10;
-        
+
         // define an integer variable called numApples with value 24 (line 18)
         int numApples = 24;
-        
+
         // print out number of oranges using variables, output: "I have 10 oranges." (line 21)
         System.out.println("I have " + numOranges + " oranges.");
 
         // print out number of apples using variables, output: "I have 24 apples." (line 24)
         System.out.println("I have " + numApples + " apples.");
-
     }
- }
-
+}

src/com/codefortomorrow/beginner/chapter2/solutions/VariableTypes.java

@@ -3,32 +3,32 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
+ *
  * Define different types of variables
  */
 
- public class VariableTypes {
+public class VariableTypes {
+
+    @SuppressWarnings("unused")
     public static void main(String[] args) {
         // write your code here
-        
+
         // define an integer variable on line 15
         int age = 23;
-        
+
         // define a float variable on line 18
         float decimal = 23.32544f;
-        
+
         // define a double variable on line 21
-        double decimal = 23.2352536d;
+        double number = 23.2352536;
 
         // define a boolean variable on line 24 (Hint: true/false)
-        double dogsOut = true;  // the dogs are out :)
+        boolean dogsOut = true; // the dogs are out :)
 
         // define a character variable on line 27
         char letter = 'A';
 
-        // define a string variable on line 30 
-        char name = "Jeff";
-
+        // define a string variable on line 30
+        String name = "Jeff";
     }
- }
-
+}

src/com/codefortomorrow/beginner/chapter4/practice/CarDealership.java

@@ -3,26 +3,20 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
+ *
  * Manage a car dealership and take inventory of all cars sold!
  */
 
- public class CarDealership {
+public class CarDealership {
+
     public static void main(String[] args) {
         // write your code here
-
-        // define 3 integer constants, representing the prices of 3 cars sold in USD (line 15-17)
-
 
-
+        // define 3 integer constants, representing the prices of 3 cars sold in USD (line 15-17)
 
         // define an integer variable, which represents the sum of the prices of these 3 cars (line 20)
-
-
-        // print out the formatted revenue after selling these 3 cars, output: "I sold 3 cars for $XXXXXX." (line 23)
-
 
+        // print out the formatted revenue after selling these 3 cars, output: "I sold 3 cars for $XXXXXX." (line 23)
 
     }
- }
-
+}

src/com/codefortomorrow/beginner/chapter4/solutions/CarDealership.java

@@ -3,26 +3,24 @@
 /**
  * @author ArmeetJatyani
  * March 2021
- * 
+ *
  * Manage a car dealership and take inventory of all cars sold!
  */
 
- public class CarDealership {
+public class CarDealership {
+
     public static void main(String[] args) {
         // write your code here
-        
+
         // define 3 integer constants, representing the prices of 3 cars sold in USD (line 15-17)
         final int car1 = 30000;
         final int car2 = 24650;
         final int car3 = 253630;
 
         // define an integer variable, which represents the sum of the prices of these 3 cars (line 20)
         int revenue = car1 + car2 + car3;
-        
+
         // print out the formatted revenue after selling these 3 cars, output: "I sold 3 cars for $XXXXXX." (line 23)
         System.out.println("I sold 3 cars for $" + revenue + ".");
-
-
     }
- }
-
+}