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Thread: default Value of char

  1. #1
    Java kindergarten chronoz13's Avatar
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    Default default Value of char

    im writing an exercise code, where i need to deal with a character sequence using a char[] array,
    i need to tell the computer to check for a default value of an index of that char[] array


    if (value in the index of this char[] array is default or offset) {

    // do something
    }
    given that , 0 is default of integers, 0.0 for doubles, "" empty string with Strings, how about character?

     char someChar = '',

    if a single quotation is a compile error? a closed character literal, if i put some space, its a white space character..
    how can i assign an offset value for a character variable?


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    Super Moderator Sean4u's Avatar
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    Default Re: default Value of char

    java primitive default value - Google Search
    Primitive Data Types (The Java™ Tutorials > Learning the Java Language > Language Basics)

    String isn't primitive the default value for a String reference is null - the same as all other references.

    Primitive types only hold valid values. How do you distinguish between valid data of 0 in an int and never-been-assigned? Perhaps you ought to consider using the 'wrapper' classes java.lang.Boolean, java.lang.Character etc?

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    chronoz13 (September 12th, 2011)

  4. #3
    Java kindergarten chronoz13's Avatar
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    Default Re: default Value of char

    String isn't primitive the default value for a String reference is null
    thank you for correcting my statement, objects/references has a 'null' as a default value,

    java.lang.Character
    ahh, so by using a wrapper class's object, i can compare a value between a 'null' and a valid one... thanks thanks

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