# Assignment3 - user from inputing a first index > second...

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// The "Assignment3" class. /*Emilie Courtemanche Simon Wu Section O Section O 459 7274 454 5302 /*This program shows the ability to use if and else statements, by calculating the index of refraction. We had to use our knowledge of the Math functions to be able to convert angles from radians to degrees and vis versa.*/ b import apsc142.*; public class Assignment3 { public static void main (String[] args) { //variables double index1;//declaring the first index double index2;//declaring the second index double angle1;//declaring the first angle double angle2;//declaring the second angle d //prompt the user System.out.print ("Please enter index one: "); index1=StdIn.readDouble(); System.out.print ("Please enter index two (index two has to be > index 1): "); index2=StdIn.readDouble(); System.out.print ("please enter angle one in degrees: "); angle1=StdIn.readDouble(); a if (index1>index2){/*The If statement is used to try and prevent the

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Unformatted text preview: user from inputing a first index > second index because this will cause a reflection (ie. no real solution).*/ System.out.println ("There is no real solution"); System.out.println ("All light is reflected back into Region1 and no light passes into Region 2 at all."); /*We are trying to give them a second chance to enter indexes that can be actually calculated.*/ System.out.print ("Please enter index one: "); index1=StdIn.readDouble(); System.out.print ("Please enter index two: "); index2=StdIn.readDouble(); angle2=Math.asin(index1/index2*Math.sin(angle1*(Math.PI/180))); Fmt.printf ("The refraction angle is: %.2f" , (angle2*(180/Math.PI)) + "degrees"); } else if (index1<=index2){ //formula angle2=Math.asin(index1/index2*Math.sin(angle1*(Math.PI/180))); Fmt.printf ("The refraction angle is: %.2f" , (angle2*(180/Math.PI)) + "degrees"); } } // main method } // Assignment3 class...
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## This note was uploaded on 12/01/2010 for the course APPLIED SC 142 taught by Professor Professorstansimmons during the Winter '10 term at Queens University.

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Assignment3 - user from inputing a first index > second...

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