Labs

conversion.iml

@@ -5,7 +5,6 @@
     <output-test url="file://$MODULE_DIR$/target/test-classes" />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
       <excludeFolder url="file://$MODULE_DIR$/target" />
     </content>

src/main/java/ConversionTool.java

@@ -1,21 +1,71 @@
 public class ConversionTool {
 
 
-    public static void main(String[] args){}
+    public static void main(String[] args) {
+    }
 
-    public static float CentimetersToInches(float centimeters){}
+    public static float CentimetersToInches(float centimeters) {
 
-    public static float InchesToCentimeters(float inches){}
+        if(centimeters < 0){
+            return 0;
+        }
 
-    public static float FeetToMeters(float feet){}
+        return centimeters / 2.54f;
+    }
 
-    public static float MetersToFeet(float meters){}
 
-    public static float CelsiusToFahrenheit(float celsius){}
+    public static float InchesToCentimeters(float inches){
 
-    public static float FahrenheitToCelsius(float fahrenheit){}
+        if (inches < 0){
+            return 0;
+        }
 
-    public static float MphToKph(float mph){}
+        return inches * 2.54f;
+    }
 
-    public static float KphToMph(float kph){}
+    public static float FeetToMeters(float feet){
+
+        if(feet < 0){
+            return 0;
+        }
+
+        return feet / 3.28f;
+    }
+
+    public static float MetersToFeet(float meters){
+
+        if(meters < 0){
+            return 0;
+        }
+
+        return meters * 3.28084f;
+    }
+
+    public static float CelsiusToFahrenheit(float celsius){
+
+        return (celsius * 1.8f) + 32f;
+    }
+
+    public static float FahrenheitToCelsius(float fahrenheit){
+
+        return (fahrenheit -32f) * .5556f;
+    }
+
+    public static float MphToKph(float mph){
+
+        if (mph < 0){
+            return 0;
+        }
+
+        return mph * 1.60934f;
+    }
+
+    public static float KphToMph(float kph){
+
+        if (kph < 0){
+            return 0;
+        }
+
+        return kph * .6214f;
+    }
 }