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  1. #1
    vnrnithy is offline Member
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    Default check for a particular pattern

    Hi all,

    i am getting the input from user.

    i want it to be in a particular format as <string>:<integer>

    like example "apples:77" the colan (:) is mandatory.

    prior to the colan string and after the colan integer is also mandatory. i need to check this.

    can you please help me on this???

    - N

  2. #2
    JosAH's Avatar
    JosAH is online now Moderator
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    Default Re: check for a particular pattern

    Maybe regular expressions are the way to solve your problem, e.g. your Strings match the following regular expression: [A-Za-z]+:\\d+ It's unreadable gibberish but it states that at least one letter (uppercase or lowercase) followed by a colon, followed by at least one digit should be the 'format' of your String. Read all about it in the API documentation for the Pattern and Matcher classes.

    kind regards,

    Jos
    I have the stamina of a seal; I lie on the beach instead of running on it.

  3. #3
    vnrnithy is offline Member
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    Default Re: check for a particular pattern

    thanks jos.

    how to embed this into the code as a Boolean and make it as test condition???

    also if i want to include both string and integer before : can i do it as [A-Za-z0-9]+:\\d+ or [A-Za-z]+\\d+:\\d+???

  4. #4
    JosAH's Avatar
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    Default Re: check for a particular pattern

    Quote Originally Posted by vnrnithy View Post
    thanks jos.

    how to embed this into the code as a Boolean and make it as test condition???

    also if i want to include both string and integer before : can i do it as [A-Za-z0-9]+:\\d+ or [A-Za-z]+\\d+:\\d+???
    Have you read the mentioned API documentation? It explains the details much better than I could do; concentrate on the Pattern class and the Matcher class.

    kind regards,

    Jos
    I have the stamina of a seal; I lie on the beach instead of running on it.

  5. #5
    Junky's Avatar
    Junky is offline Grand Poobah
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    Default Re: check for a particular pattern

    String.matches would also work.

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