java_visualize | Visualization for Java , using the Online Python Tutor | Data Visualization library
kandi X-RAY | java_visualize Summary
kandi X-RAY | java_visualize Summary
java_visualize: visualization for java David Pritchard (daveagp@gmail.com), created May 2013.
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QUESTION
I'm trying to find the rank of given strings using recursion, but can't seem to to come out of the recursion the way I want to. Where am I going wrong?
...ANSWER
Answered 2020-Mar-24 at 08:15Your for loop causes you to end the recursion after you find the first permutation, which is why you always return 1.
What you should be doing is to end the recursion once you find the permutation you are looking for. You can do that, for example, if your recursive method would return a boolean
flag instead of an int
.
Once the recursive method returns, the length of your list
will be the rank you are looking for:
QUESTION
Can someone tell me, why the debugger doesn't show variable j
in stack frame(Using IntelliJ IDEA)?
ANSWER
Answered 2018-Sep-21 at 02:15This variable is not used and javac
compiler optimizes the bytecode by completely removing it. You can add some usage for the variable, like log it so System.out
and then you should be able to see it in the debugger.
QUESTION
I am creating a program that counts the number of vowels, consonants, spaces, and punctuation in a string. Before moving on to anything else, I'm making sure that the vowel checker works. I've created a loop that seems to work logically, as I've run it through a java visualizer, and everything checks out. But, I get an error when I run it through the BlueJ IDE. It says: java.lang.StringIndexOutOfBoundsException: String index out of range. I have no idea what the issue is, and I would appreciate any and all help. This is a link to the java visualizer if anyone wants to test it for themselves, and I have the code posted below:
...ANSWER
Answered 2017-Nov-15 at 22:23The problem is with your "for" loop. You check if count value is less than str_compare value (which is a numeric representation of character from given string). I think this is not what you were expecting. I would suggest few little modifications - it provides checking character from given string ( str_compare = user_str.charAt(count);
) and after every loop count
value is being increased to check next character from this string. In every loop there is validation made, to check whether the end of string is currently reached (count < user_str.length()
)
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