ConversionTool.ctxt

+#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

 public class ConversionTool {
 
+    public static void main(String[] args){
+    }
 
-    public static void main(String[] args){}
+    public static float CentimetersToInches(float centimeters){
+        float inch = centimeters * (float) 0.393701;
+        if (centimeters < 0){
+            return 0;
+        } else {
+            return inch;
+        }
 
-    public static float CentimetersToInches(float centimeters){}
+    }
 
-    public static float InchesToCentimeters(float inches){}
+    public static float InchesToCentimeters(float inches){
+        float centimeters = inches * (float) 2.54;
+        if (inches < 0) {
+            return 0;
+        } else {
+            return centimeters;
+        }
 
-    public static float FeetToMeters(float feet){}
+    }
 
-    public static float MetersToFeet(float meters){}
+    public static float FeetToMeters(float feet){
+        float meters = feet * (float) 0.304800164592;
+        if (meters < 0){
+            return 0;
+        }
+        return meters;
+    }
 
-    public static float CelsiusToFahrenheit(float celsius){}
+    public static float MetersToFeet(float meters){
+        float feet = meters * (float) 3.28084166666666599;
+        if (meters < 0) {
+            return 0;
+        } 
+        return feet;
+    }
 
-    public static float FahrenheitToCelsius(float fahrenheit){}
+    public static float CelsiusToFahrenheit(float celsius){
+        float fahrenheit =((celsius)* (float)1.8) + (float)32 ;
+        if (fahrenheit < 0 ){
+            return 0;
+        }
+        return fahrenheit; //this is the problem
+    }
 
-    public static float MphToKph(float mph){}
+    public static float FahrenheitToCelsius(float fahrenheit){
+        float celsius = (fahrenheit - 32)/(float)1.8;
+        if (fahrenheit < 0) {
+            return  0;
+        }
+        return celsius; //this is the problem too
+    }
 
-    public static float KphToMph(float kph){}
+    public static float MphToKph(float mph){
+        float kph = mph * (float) 1.60934;
+        if (mph < 0) {
+            return 0;
+        }
+        return kph;
+    }
+
+    public static float KphToMph(float kph){
+        float mph = kph *(float) 0.621371;
+        if (kph < 0){
+            return 0;
+        }
+        return mph;
+    }
 }

ConversionToolSpec.ctxt

+#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

 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=425
+editor.fx.0.y=47
 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.x=222
+package.editor.y=187
 package.frame.height=600
 package.frame.width=800
 package.numDependencies=1
 target1.height=50
 target1.name=ConversionToolSpec
 target1.showInterface=false
-target1.type=ClassTarget
+target1.type=UnitTestTargetJunit4
 target1.width=150
 target1.x=130
 target1.y=10