#2 #3 #4 Completes 2/3/4 assignments

madhav/src/main/java/com/lftechnology/phpjava/arrays/DayOfWeek.java

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+package main.java.com.lftechnology.phpjava.arrays;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import main.java.com.lftechnology.phpjava.main.Scanner;
+
+public class DayOfWeek {
+    private Map<Integer, String> weekdays = new HashMap<Integer, String>();
+
+    public DayOfWeek() {
+        weekdays.put(1, "Sunday");
+        weekdays.put(2, "Monday");
+        weekdays.put(3, "Tuesday");
+        weekdays.put(4, "Wednesday");
+        weekdays.put(5, "Thursday");
+        weekdays.put(6, "Friday");
+        weekdays.put(7, "Saturday");
+    }
+
+    /**
+     * Gets input from user(in console), and displays associated day of week name
+     * 
+     * @author madhav
+     */
+    public void findDayOfWeek() {
+        System.out.println("Enter day of week number:");
+        int day = Scanner.get().nextInt();
+        if (weekdays.containsKey(day)) {
+            System.out.println("Day is: " + weekdays.get(day));
+        } else {
+            System.out.println("Not a valid day.");
+        }
+    }
+}

madhav/src/main/java/com/lftechnology/phpjava/main/Runner.java

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+package main.java.com.lftechnology.phpjava.main;
+
+import main.java.com.lftechnology.phpjava.main.views.Menu;
+
+public class Runner {
+
+    public static void main(String[] args) {
+        int menu = Menu.getMenu();
+        Task t = new Task();
+        t.runTask(menu);
+    }
+}

madhav/src/main/java/com/lftechnology/phpjava/main/Scanner.java

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+package main.java.com.lftechnology.phpjava.main;
+
+public class Scanner {
+    private static java.util.Scanner reader = new java.util.Scanner(System.in);;
+
+    public static java.util.Scanner get() {
+        return reader;
+    }
+}

madhav/src/main/java/com/lftechnology/phpjava/main/Task.java

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+package main.java.com.lftechnology.phpjava.main;
+
+import main.java.com.lftechnology.phpjava.arrays.DayOfWeek;
+import main.java.com.lftechnology.phpjava.numbers.AddMultiples;
+import main.java.com.lftechnology.phpjava.numbers.Fibonacci;
+import main.java.com.lftechnology.phpjava.strings.NameSplitter;
+
+public class Task {
+    public void runTask(int taskNumber) {
+        switch (taskNumber) {
+        case 1:
+            NameSplitter ns = new NameSplitter();
+            ns.getAndExtractname();
+            break;
+        case 2:
+            AddMultiples am = new AddMultiples();
+            am.getMultiples();
+            break;
+        case 3:
+            Fibonacci f = new Fibonacci();
+            f.getFibonacciSum();
+            break;
+        case 4:
+            DayOfWeek d = new DayOfWeek();
+            d.findDayOfWeek();
+            break;
+        case 0:
+        default:
+            System.out.println("Bye!");
+            System.exit(0);
+        }
+    }
+}

madhav/src/main/java/com/lftechnology/phpjava/main/views/Menu.java

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+package main.java.com.lftechnology.phpjava.main.views;
+
+import main.java.com.lftechnology.phpjava.main.Scanner;
+
+public class Menu {
+    public static String[] menu = { 
+            "1. Extract salutation from name", 
+            "2. Check sum of multiples", 
+            "3. Find sum of fibonaccis", 
+            "4. Get day of week", 
+            "0. Exit" 
+            };
+
+    public static int getMenu() {
+        System.out.println("Please enter the action to perform:");
+        for (String option : menu) {
+            System.out.println(option);
+        }
+        int option = Scanner.get().nextInt();
+        return option;
+    }
+}

madhav/src/main/java/com/lftechnology/phpjava/numbers/AddMultiples.java

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+package main.java.com.lftechnology.phpjava.numbers;
+
+import main.java.com.lftechnology.phpjava.main.Scanner;
+
+public class AddMultiples {
+
+    /**
+     * Gets three inputs - limit, number1, and number2 from user.
+     * Then displays sum of all multiples of either number1 or number2 below the limit.
+     */
+    public void getMultiples() {
+        System.out.println("Enter the limit:");
+        int max = Scanner.get().nextInt();
+        System.out.println("Enter the first number:");
+        int num1 = Scanner.get().nextInt();
+        System.out.println("Enter the second number:");
+        int num2 = Scanner.get().nextInt();
+        int sum = 0;
+        for (int i = 0; i < max; i++) {
+            if (i % 3 == 0 || i % 5 == 0) {
+                sum += i;
+            }
+        }
+        System.out.println("Sum of " + num1 + " and " + num2 + "'s multiples upto " + max + ": " + sum);
+    }
+}

madhav/src/main/java/com/lftechnology/phpjava/numbers/Fibonacci.java

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+package main.java.com.lftechnology.phpjava.numbers;
+
+import main.java.com.lftechnology.phpjava.main.Scanner;
+
+public class Fibonacci {
+
+    /**
+     * Displays sum of all even fibonacci numbers within given range
+     */
+    public void getFibonacciSum() {
+        System.out.println("Enter the limit:");
+        int max = Scanner.get().nextInt();
+        int f = 1;
+        int sum = 0;
+        int i = 0;
+        while(f + i < max) {
+            int j = f;
+            f = i + f;
+            i = j;
+            if(f % 2 == 0) {
+                sum += f;
+            }
+        } 
+        System.out.println("Sum of even fibonaccis upto " + max + ": " + sum);
+    }
+}

madhav/src/main/java/com/lftechnology/phpjava/strings/NameSplitter.java

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+package main.java.com.lftechnology.phpjava.strings;
+
+import main.java.com.lftechnology.phpjava.main.Scanner;
+
+/**
+ * 
+ * @author madhav
+ *
+ */
+public class NameSplitter {
+    /**
+     * Gets input from user(in console) assumed to be full name, and displays extracted salutation and name
+     * 
+     * @author madhav
+     */
+    public void getAndExtractname() {
+        String allName = "";
+
+        while (allName == "") {
+            System.out.println("Enter Your Name(with Salutation): ");
+            allName = Scanner.get().nextLine();
+            allName = allName.trim();
+            String[] nameParts = allName.split(" ");
+            if (nameParts.length < 2) {
+                continue;
+            }
+            String salutation = nameParts[0];
+            String fullName = "";
+            for (int i = 1; i < nameParts.length; i++) {
+                fullName += nameParts[i] + " ";
+            }
+            fullName = fullName.trim();
+            System.out.println("Salutation: " + salutation);
+            System.out.println("Name: " + fullName);
+        }
+    }
+}