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Thread: beginner question--boolean expressions

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    Default beginner question--boolean expressions

    Okay, say that I am using an if-else statement and i want to basically say that
    if (string.contains("#")
    then do this...
    else if (string.contains ("#") = false)
    then do this...
    else
    then do this...

    so, my question is about the second else if statement. I know that I can't say what I typed up there but I need to figure out a way to write if string doesn't contain a certain substring then do something else... Any suggestions?


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    Default Re: beginner question--boolean expressions

    Any reason a simple else clause won't work? As anything which doesn't evaulate to true when performing String.contains("#") will enter the else clause.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: beginner question--boolean expressions

    You do not want the expression to equal true, so what's the opposite of true? A lot of these basics can be found at the following link:
    Lesson: Language Basics (The Java™ Tutorials > Learning the Java Language)

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    Default Re: beginner question--boolean expressions

    I tried both of these already and returned
    Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -1
    at java.lang.String.substring(String.java:1931)
    at tweetToLeet.main(tweetToLeet.java:26)

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    Default Re: beginner question--boolean expressions

    And what code did you use exactly to achieve such an Exception?
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: beginner question--boolean expressions

    I figured it out... thanks for all the advise though... had nothing to do with my boolean expressions.... had more to do with placement of {'s.... stupid mistake haha :/

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    Default Re: beginner question--boolean expressions

    Glad you solved it ninjaBob.
    If you could now mark this thread as solved, I would be grateful.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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