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POHow can I make this java code go back to a certain point in the code?
 

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  1. POHow can I make this java code go back to a certain point in the code?
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    <p>So as you could probably tell, it is a calculator. This is the second program I have made in Java, besides robotics code. I am pretty new to Java, so I don't know a ton about it. I want to be able to go back to the menu (lines 19-27) after it gives the answer to the question. If I can do this, I will put something like M for menu or E to exit after the answer. I want it so if they put M, it will go back to those lines of code to be able to start over again instead of restarting the program. Thanks, Matt.</p> <pre><code>public class Calculator { public static void main(String[] args) { System.out.println("Calculator"); System.out.println("----------"); System.out.println("Press 1 for addition"); System.out.println("Press 2 for subtraction"); System.out.println("Press 3 for multiplication"); System.out.println("Press 4 for division"); int Menu; Scanner menu_scanner = new Scanner(System.in); Menu = menu_scanner.nextInt(); if (Menu == 1){ System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println("Please enter the first number in the problem"); System.out.println("--------------------------------------------"); double iAddition1; double iAddition2; double aAddition; Scanner sAddition1 = new Scanner(System.in); iAddition1 = sAddition1.nextDouble(); System.out.println("Please enter the second number in the problem"); System.out.println("---------------------------------------------"); Scanner sAddition2 = new Scanner(System.in); iAddition2 = sAddition2.nextDouble(); aAddition = iAddition1 + iAddition2; System.out.println("The answer to " + iAddition1 + " + " + iAddition2 + " = " + aAddition); } if (Menu == 2){ System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println("Please enter the first number in the problem"); System.out.println("--------------------------------------------"); double iSubtraction1; Scanner sSubtraction1 = new Scanner(System.in); iSubtraction1 = sSubtraction1.nextDouble(); System.out.println("Please enter the second number in the problem"); System.out.println("---------------------------------------------"); double iSubtraction2; Scanner sSubtraction2 = new Scanner(System.in); iSubtraction2 = sSubtraction2.nextDouble(); double aSubtraction = iSubtraction1 - iSubtraction2; System.out.println("The answer to " + iSubtraction1 + " - " + iSubtraction2 + " = " + aSubtraction); } if (Menu == 3){ System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println("Please enter the first number in the problem"); System.out.println("--------------------------------------------"); double iMultiplication1; double iMultiplication2; Scanner sMultiplication1 = new Scanner(System.in); iMultiplication1 = sMultiplication1.nextDouble(); System.out.println("Please enter the second number in the problem"); System.out.println("---------------------------------------------"); Scanner sMultiplication2 = new Scanner(System.in); iMultiplication2 = sMultiplication2.nextDouble(); double aMultiplication = iMultiplication1 * iMultiplication2; System.out.println("The answer to " + iMultiplication1 + " * " + iMultiplication2 + " = " + aMultiplication); } if (Menu == 4){ System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println(""); System.out.println("Please enter the first number in the problem"); System.out.println("--------------------------------------------"); Scanner sDivision1 = new Scanner(System.in); double iDivision1; iDivision1 = sDivision1.nextDouble(); System.out.println("Please enter the second number in the problem"); System.out.println("---------------------------------------------"); Scanner sDivision2 = new Scanner(System.in); double iDivision2; iDivision2 = sDivision1.nextDouble(); double aDivision = iDivision1 / iDivision2; System.out.println("The answer to " + iDivision1 + " / " + iDivision2 + " = " + aDivision); } } } </code></pre>
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    2. CO@SLaks - The guy needs to learn about everything.
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    3. COSee what happens you do `System.out.println("\n\n\n\n\n\n\n\n\n");`
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