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Thread: There is some kind of Exception - Do not know the problem

  1. #1
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    Exclamation There is some kind of Exception - Do not know the problem

    package java;
    import java.util.Scanner;
    public class Project_1 {
    	public static void main(String args){
    		 Scanner fire = new Scanner(System.in);
    		 double firstnum, secondnum, answer;
    		 System.out.println("Enter your first number: ");
    		 firstnum = fire.nextDouble();
    		 System.out.println("Enter your second number: ");
    		 secondnum = fire.nextDouble();
    		 answer = firstnum + secondnum;
    		 System.out.println(answer);
    	}
     
     
     
    }

    These are the errors:
    Exception in thread "main" java.lang.SecurityException: Prohibited package name: java
    at java.lang.ClassLoader.preDefineClass(Unknown Source)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknow n Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.launcher.LauncherHelper.checkAndLoadMain(Unkno wn Source)


    I don't know!


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: There is some kind of Exception - Do not know the problem

    java.lang.SecurityException: Prohibited package name: java
    The error message looks like it's in good English. Using java is not allowed.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: There is some kind of Exception - Do not know the problem

    So I can't use the package name java?

  4. #4
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    Default Re: There is some kind of Exception - Do not know the problem

    A rhetorical question, I hope.

  5. #5
    Super Moderator Norm's Avatar
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    Default Re: There is some kind of Exception - Do not know the problem

    See the error message. Prohibited package name
    If you don't understand my answer, don't ignore it, ask a question.

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