great practice

ConversionTool.ctxt

@@ -0,0 +1,21 @@
+#BlueJ class context
+comment0.target=ConversionTool
+comment1.params=args
+comment1.target=void\ main(java.lang.String[])
+comment2.params=centimeters
+comment2.target=float\ CentimetersToInches(float)
+comment3.params=inches
+comment3.target=float\ InchesToCentimeters(float)
+comment4.params=feet
+comment4.target=float\ FeetToMeters(float)
+comment5.params=meters
+comment5.target=float\ MetersToFeet(float)
+comment6.params=celsius
+comment6.target=float\ CelsiusToFahrenheit(float)
+comment7.params=fahrenheit
+comment7.target=float\ FahrenheitToCelsius(float)
+comment8.params=mph
+comment8.target=float\ MphToKph(float)
+comment9.params=kph
+comment9.target=float\ KphToMph(float)
+numComments=10

ConversionTool.java

@@ -1,21 +1,53 @@
 public class ConversionTool {
 
-
-    public static void main(String[] args){}
-
-    public static float CentimetersToInches(float centimeters){}
-
-    public static float InchesToCentimeters(float inches){}
-
-    public static float FeetToMeters(float feet){}
-
-    public static float MetersToFeet(float meters){}
-
-    public static float CelsiusToFahrenheit(float celsius){}
-
-    public static float FahrenheitToCelsius(float fahrenheit){}
-
-    public static float MphToKph(float mph){}
-
-    public static float KphToMph(float kph){}
+    public static void main(String[] args){
+    }
+
+    public static float CentimetersToInches(float centimeters){
+        if(centimeters<=0){
+            return 0;
+        }else return centimeters*0.394f;
+    }
+
+    public static float InchesToCentimeters(float inches){
+        if(inches<=0){
+            return 0;
+        }else return inches*2.54f;
+    }
+
+    public static float FeetToMeters(float feet){
+        if(feet<=0){
+            return 0;
+        }else return feet/3.28f;
+    }
+
+    public static float MetersToFeet(float meters){
+        if(meters<=0){
+            return 0;
+        }else return meters/0.3048f;
+    }
+
+    public static float CelsiusToFahrenheit(float celsius){
+        if(celsius<=0){
+            return 0;
+        }else return (celsius*1.8f)+32;
+    }
+
+    public static float FahrenheitToCelsius(float fahrenheit){
+        if(fahrenheit<=0){
+            return 0;
+        }else return (fahrenheit-32)/1.8f;
+    }
+
+    public static float MphToKph(float mph){
+        if(mph<=0){
+            return 0;
+        }else return mph*1.609344f;
+    }
+
+    public static float KphToMph(float kph){
+        if(kph<=0){
+            return 0;
+        }else return kph/1.609344f;
+    }
 }

ConversionToolSpec.ctxt

@@ -0,0 +1,43 @@
+#BlueJ class context
+comment0.target=ConversionToolSpec
+comment1.params=
+comment1.target=void\ shouldConvertCentimetersToInches()
+comment10.params=
+comment10.target=void\ shouldConvertMetersToFeet()
+comment11.params=
+comment11.target=void\ shouldConvertZeroMetersToZeroFeet()
+comment12.params=
+comment12.target=void\ shouldConvertNegativeMetersToZeroFeet()
+comment13.params=
+comment13.target=void\ shouldConvertFahrenheitToCelsius()
+comment14.params=
+comment14.target=void\ shouldConvertCelsiusToFahrenheit()
+comment15.params=
+comment15.target=void\ shouldConvertMphToKph()
+comment16.params=
+comment16.target=void\ shouldConvertZeroMphToZeroKph()
+comment17.params=
+comment17.target=void\ shouldConvertNegativeMphToZeroKph()
+comment18.params=
+comment18.target=void\ shouldConvertKphToMph()
+comment19.params=
+comment19.target=void\ shouldConvertZeroKphToZeroMph()
+comment2.params=
+comment2.target=void\ shouldConvertZeroCentimetersToZeroInches()
+comment20.params=
+comment20.target=void\ shouldConvertNegativeKphToZeroMph()
+comment3.params=
+comment3.target=void\ shouldConvertNegativeCentimetersToZeroInches()
+comment4.params=
+comment4.target=void\ shouldConvertInchesToCentimeters()
+comment5.params=
+comment5.target=void\ shouldConvertZeroInchesToZeroCentimeters()
+comment6.params=
+comment6.target=void\ shouldConvertNegativeInchesToZeroCentimeters()
+comment7.params=
+comment7.target=void\ shouldConvertFeetToMeters()
+comment8.params=
+comment8.target=void\ shouldConvertZeroFeetToZeroMeters()
+comment9.params=
+comment9.target=void\ shouldConvertNegativeFeetToZeroMeters()
+numComments=21

package.bluej

@@ -4,16 +4,16 @@ dependency1.to=ConversionTool
 dependency1.type=UsesDependency
 editor.fx.0.height=722
 editor.fx.0.width=800
-editor.fx.0.x=320
-editor.fx.0.y=75
+editor.fx.0.x=-11
+editor.fx.0.y=26
 objectbench.height=164
-objectbench.width=776
+objectbench.width=461
 package.divider.horizontal=0.6
 package.divider.vertical=0.6845018450184502
 package.editor.height=364
 package.editor.width=674
 package.editor.x=419
-package.editor.y=221
+package.editor.y=147
 package.frame.height=600
 package.frame.width=800
 package.numDependencies=1
@@ -29,7 +29,7 @@ readme.y=10
 target1.height=50
 target1.name=ConversionToolSpec
 target1.showInterface=false
-target1.type=ClassTarget
+target1.type=UnitTestTargetJunit4
 target1.width=150
 target1.x=130
 target1.y=10