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twebz-gh · twebz-gh · commit a01da759d8c4 · 2021-05-11T10:22:41.000-04:00
diff --git a/ch03/tony/CelsiusToFahrenheit.java b/ch03/tony/CelsiusToFahrenheit.java
@@ -0,0 +1,20 @@
+import java.util.Scanner;
+
+/**
+ * Convert Celsius to Fahrenheit
+ */
+public class CelsiusToFahrenheit {
+
+    public static void main(String[] args) {
+        double celsius;
+        double fahrenheit;
+        Scanner in = new Scanner(System.in);
+        System.out.print("Enter a temperature in Celsius: ");
+        celsius = in.nextDouble();
+        in.nextLine();
+        fahrenheit = celsius * 9;
+        fahrenheit = fahrenheit / 5;
+        fahrenheit = fahrenheit + 32;
+        System.out.printf("%.1f C = %.1f F\n", celsius, fahrenheit);
+    }
+}
diff --git a/ch03/tony/ConvertSeconds.java b/ch03/tony/ConvertSeconds.java
@@ -0,0 +1,26 @@
+import java.util.Scanner;
+
+/**
+ * Convert seconds to hours, minutes, and seconds.
+ */
+public class ConvertSeconds {
+
+    public static void main(String[] args) {
+        final int SECONDS_PER_HOUR = 3600;
+        final int SECONDS_PER_MINUTE = 60;
+        int seconds;
+        int orig_seconds;
+        int minutes;
+        int hours;
+        Scanner in = new Scanner(System.in);
+        System.out.print("Enter number of seconds: ");
+        seconds = in.nextInt();
+        in.nextLine();
+        orig_seconds = seconds;
+        hours = seconds / SECONDS_PER_HOUR;
+        seconds = seconds % SECONDS_PER_HOUR;
+        minutes = seconds / SECONDS_PER_MINUTE;
+        seconds = seconds % SECONDS_PER_MINUTE;
+        System.out.printf("%d seconds = %d hours, %d minutes, and %d seconds\n", orig_seconds, hours, minutes, seconds);
+    }
+}
diff --git a/ch03/tony/GuessMyNumber.java b/ch03/tony/GuessMyNumber.java
@@ -0,0 +1,27 @@
+import java.util.Random;
+import java.util.Scanner;
+
+/**
+ * User guesses a random number.
+ */
+public class GuessMyNumber {
+
+    public static void main(String[] args) {
+        int number;
+        int guess;
+
+        Random random = new Random();
+        number = random.nextInt(100) + 1;
+
+        System.out.println("I'm thinking of a number between 1 and 100");
+        System.out.println("(including both). Can you guess what it is?");
+        System.out.print("Type a number: ");
+        Scanner in = new Scanner(System.in);
+        guess = in.nextInt();
+        in.nextLine();
+
+        System.out.printf("Your guess is: %d\n", guess);
+        System.out.printf("The number I was thinking of is: %d\n", number);
+        System.out.printf("You were off by: %d\n", Math.abs(number - guess));
+    }
+}
diff --git a/hw02/tony/Calories.java b/hw02/tony/Calories.java
@@ -0,0 +1,20 @@
+
+class Calories {
+
+    public static void main(String[] args) {
+        int years = 25;
+        int feet = 5;
+        int inches = 10;
+        int pounds = 160;
+        int ounces = 3;
+        double weight = (16 * pounds + ounces) * 0.0283495;
+        double height = (12 * feet + inches) * 2.54;
+        double bmr_base = 10 * weight + 6.25 * height - 5 * years;
+        System.out.print("Male BMR = ");
+        System.out.print(bmr_base + 5);
+        System.out.println(" calories/day.");
+        System.out.print("Female BMR = ");
+        System.out.print(bmr_base - 161);
+        System.out.println(" calories/day.");
+    }
+}
