Fixed division by 0 print

Console.java

                     basicAnswer = Double.NaN;
                     Console.println("Invalid Input");
                 }
-                if (basicMode.equals("4") && !(basicInput2 == 0)) {
+                if (!basicMode.equals("4") && !(basicInput2 == 0)) {
                 Console.println(Double.toString(basicAnswer));
             }
                 break;

MainMenu.java

     
     public void mainMenuDisplay()
     {
-        Console.println("Calculator Options:"
+        Console.println("\nCalculator Options:"
                          + "\n1: Basic Calculator (+ - * /)"
                          + "\n2: Advanced Calculator (Exponential Functions)"
                          + "\n3: Scientific Functions (Base Conversion, Memory, Trigonometry)"

package.bluej

 #BlueJ package file
-dependency1.from=MainMenu
+dependency1.from=Basic
 dependency1.to=Console
 dependency1.type=UsesDependency
 dependency10.from=Console
 dependency15.from=Console
 dependency15.to=Trig
 dependency15.type=UsesDependency
+dependency16.from=BasicTest
+dependency16.to=Basic
+dependency16.type=UsesDependency
+dependency17.from=TrigTest
+dependency17.to=Trig
+dependency17.type=UsesDependency
 dependency2.from=SciCalc
 dependency2.to=Console
 dependency2.type=UsesDependency
-dependency3.from=MainApplication
+dependency3.from=RealAdvanced
 dependency3.to=Console
 dependency3.type=UsesDependency
 dependency4.from=MemoryFunc
 dependency4.to=Console
 dependency4.type=UsesDependency
-dependency5.from=SwitchDisplay
+dependency5.from=Trig
 dependency5.to=Console
 dependency5.type=UsesDependency
-dependency6.from=Trig
+dependency6.from=SwitchDisplay
 dependency6.to=Console
 dependency6.type=UsesDependency
-dependency7.from=Basic
+dependency7.from=MainMenu
 dependency7.to=Console
 dependency7.type=UsesDependency
-dependency8.from=RealAdvanced
+dependency8.from=MainApplication
 dependency8.to=Console
 dependency8.type=UsesDependency
 dependency9.from=Console
 package.editor.y=59
 package.frame.height=759
 package.frame.width=619
-package.numDependencies=15
-package.numTargets=9
+package.numDependencies=17
+package.numTargets=11
 package.showExtends=true
 package.showUses=true
 project.charset=UTF-8
 readme.width=47
 readme.x=10
 readme.y=10
+target1.association=BasicTest
 target1.height=50
 target1.name=Basic
 target1.showInterface=false
 target1.width=80
 target1.x=320
 target1.y=180
+target10.height=50
+target10.name=MainMenu
+target10.showInterface=false
+target10.type=ClassTarget
+target10.width=90
+target10.x=70
+target10.y=10
+target11.height=50
+target11.name=MainApplication
+target11.showInterface=false
+target11.type=ClassTarget
+target11.width=120
+target11.x=70
+target11.y=70
 target2.height=50
 target2.name=SciCalc
 target2.showInterface=false
 target3.x=170
 target3.y=10
 target4.height=50
-target4.name=MemoryFunc
+target4.name=TrigTest
 target4.showInterface=false
-target4.type=ClassTarget
-target4.width=110
-target4.x=210
-target4.y=350
+target4.type=UnitTestTargetJunit4
+target4.width=80
+target4.x=350
+target4.y=40
 target5.height=50
-target5.name=Console
+target5.name=MemoryFunc
 target5.showInterface=false
 target5.type=ClassTarget
-target5.width=80
-target5.x=70
-target5.y=170
+target5.width=110
+target5.x=210
+target5.y=350
 target6.height=50
-target6.name=Trig
+target6.name=Console
 target6.showInterface=false
 target6.type=ClassTarget
 target6.width=80
-target6.x=320
-target6.y=70
+target6.x=70
+target6.y=170
 target7.height=50
-target7.name=SwitchDisplay
+target7.name=BasicTest
 target7.showInterface=false
-target7.type=ClassTarget
-target7.width=110
-target7.x=80
-target7.y=350
+target7.type=UnitTestTargetJunit4
+target7.width=80
+target7.x=350
+target7.y=150
+target8.association=TrigTest
 target8.height=50
-target8.name=MainMenu
+target8.name=Trig
 target8.showInterface=false
 target8.type=ClassTarget
-target8.width=90
-target8.x=70
-target8.y=10
+target8.width=80
+target8.x=320
+target8.y=70
 target9.height=50
-target9.name=MainApplication
+target9.name=SwitchDisplay
 target9.showInterface=false
 target9.type=ClassTarget
-target9.width=120
-target9.x=70
-target9.y=70
+target9.width=110
+target9.x=80
+target9.y=350