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Thread: Maximum length of a string

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    Default Maximum length of a string

    I need to store a string of length approx 2 60 000 characters. I get an error saying that it is too large. Searching on Google, I found different answers and each one has a reason. Now, what is the maximum length of a String and what do I do if I wish to store strings larger than that maximum size?


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    Junior Member HandgunSally's Avatar
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    Default Re: Maximum length of a string

    class String implements java.io.Serializable {
    private char value[]; // 4 bytes + 12 bytes of array header
    private int offset; // 4 bytes
    private int count; // 4 bytes
    }


    The largest number a four-byte signed integer can hold is 2,147,483,647.

    So I guess that's the max length of a String.

    I HOPE THIS HELPS

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    Question Re: Maximum length of a string

    Quote Originally Posted by HandgunSally View Post
    class String implements java.io.Serializable {
    private char value[]; // 4 bytes + 12 bytes of array header
    private int offset; // 4 bytes
    private int count; // 4 bytes
    }


    The largest number a four-byte signed integer can hold is 2,147,483,647.

    So I guess that's the max length of a String.

    I HOPE THIS HELPS
    Thanks for your reply but I couldn't understand much of it. This is what I actually want to type in the editor:
    String str="000000000 1"+
    "000000001 1"+
    "000000002 1"+
    "000000010 1"+
    "000000011 1"+
    "000000012 1"+
    // and around 20000 lines in this way
    +"222222221 1"+
    "2222222222 1";
    I am getting a compilation error that the String literal is too large. As per the maximum value stated by you, I shouldn't be getting this error. Is there any other alternative way to store this large String literal?

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    Administrator copeg's Avatar
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    Default Re: Maximum length of a string

    Hardcoding through string addition is possibly not the best practice anyway, depending upon what your needs are. Store the String in a File, or use a StringBuilder or StringBuffer.

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