Array length issues

Whatever i put in for h, tiles at i's length is always 1.
tiles' length is correct. Why?

whether that code is in an external .as file or not is
irrelevant. the problem is it's probably in a class file and
there's something (other than the code you showed) that's causing
the problem.

Similar Messages

  • Why arrays length is defined to be a field not a method in Java?

    Why arrays length is defined to be a field not a method in Java?

    TRANSLATE result USING R.
    This statement replaces all characters in field result according to the substitution rule stored in field string R .  R contains pairs of letters, where the first letter of each pair is replaced by the second letter.
    in your case TRANSLATE result USING '#'.
    menas '#' and  ' ' space are 2 pair of characters.. and # is replaced by ' ' (space).
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    Example:
    DATA: T(10) VALUE 'AbCdEfGhIj',
    STRING LIKE T,
    RULE(20) VALUE 'AxbXCydYEzfZ'.
    STRING = T.
    TRANSLATE STRING USING RULE.
    WRITE / STRING.
    Output:
    xXyYzZGhIj
    Hope this helps..

  • How to set array length correctly in this case

      class RunJavaCode implements ActionListener{
        public void actionPerformed(ActionEvent e){
          try{
            Process proc=Runtime.getRuntime().exec("java javaapp");
            InputStream input=proc.getInputStream();
            byte[] b=new byte[3000];
            input.read(b);              
            String javaReport=new String(b);
            input.close();
            outputText.setText(javaReport);
          }catch(IOException ioex){System.out.println("IOException is "+ioex);}
      }how to set this array(byte[] b) length correctly? I mean this array length should not only save memory,but also enough to use('enough to use' mean that read outputed info from console to this byte array never overflow)

    Hi,
    you cannot know in advance, how many bytes will be read. But the read-method returns the number of bytes actually read and this is important!
    So at least you have to write:        int r = input.read(b);
            String javaReport=new String(b, 0, r); However, you still do not know, whether there is even more output available. You could however retrieve the data in a loop and append it e.g. to a StringBuffer, until EOF is encountered.

  • Maximum array length in javacard

    hi all
    i have a java class with 20 member variables.
    member variables are array of bytes. i doesn't allocate
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    memory for this variables is dynamically allocated
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    i defined an array of this class in my applet( in applet constructor):
    myclassArray = new myclass[MAX]
    for ( short i =0; i < MAX; i++ )
        myclassArray[i] = new myclass();myclass.java:
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                 byte[] membervariable1;
                  setVar1( byte[] input) {
                   membervariable1 = input;
            }if MAX >= 100 , i can't load applet on the card.
    (error :conditions of use not satisfied)
    why this problem occurs? my card is 32k and i doesn't allocate memory for myclass member variables in applet constructor;
    maybe an array of class in javacard has a maximum value in its length. am i right?
    thanks,
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    s.fallahdoost wrote:
    hi all
    i have a java class with 20 member variables.
    member variables are array of bytes. i doesn't allocate
    memory for this variables in class constructor,It doesn't look like it. If you look at the code snippet below, which is located in the constructor, you are allocating memory in the loop.
    memory for this variables is dynamically allocated
    in my javacard applet (*runtime*).Does not like it neither. If you look at your second code snippet, you're jusr re-referencing the pointer to another instance.
    i defined an array of this class in my applet( in applet constructor):
    myclassArray = new myclass[MAX]
    for ( short i =0; i < MAX; i++ )
    myclassArray[i] = new myclass();myclass.java:
    class myclass {
    byte[] membervariable1;
    setVar1( byte[] input) {
    membervariable1 = input;
    }if MAX >= 100 , i can't load applet on the card.
    (error :conditions of use not satisfied)Could be, since you're allocating memory in the constructor.
    why this problem occurs? my card is 32k and i doesn't allocate memory for myclass member variables in applet constructor;
    maybe an array of class in javacard has a maximum value in its length. am i right?The maximum array length is 32k.

  • Problems with getting array length

    I couldn't get array length in the java from the oracle.
    Here is my source.
    Can anybody answer me, I will really appriciate that.
    Thanks.
    public class Test_tb{
    public static double Test (oracle.sql.ARRAY args){
    double ret = 0;
    try {
    Double[] retArr = (Double[]) args.getArray();
    return retArr.length;
    } catch (Exception e){}
    return ret;
    }

    I've rewritten your code to include the display of any exception that might occur. Could you please run it and post any stack trace here? Thanks.
    public class Test_tb{
      public static double Test (oracle.sql.ARRAY args){
      double ret = 0;
      try {
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        return retArr.length;
      } catch (Exception e){}
        e.printStackTrace();
        return ret;
    }

  • Question on array.Length

    I have an array[4]. Then the subscripts are number 0, 1, 2, 3. Does array.Length return 4 or 3. I am thinking 4 but I want to make sure.

    java.secure(?).SecureRandom.java.security.SecureRandom
    It's more straightforward and has better statistical properties.While I agree, with the straightforward,
    but statistical I would of thought they'd
    be even.It's better for several reasons:
    1) nextInt is faster. It uses (on average) 1-1/3 calls to next(int), whereas nextDouble() (what Math.random() uses) always uses two. This also means nextInt will use up the generator's period more slowly.
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    3) It's nicer to use nextInt. It uses OO (instead of the relatively global function call to Math.random()), it doesn't compete with other parts of the Application for using up some of the prng's period, it allows the substitution of other (better or worse) algorithms with fewer changes, and it looks better.
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  • How to calc array length in Labwindows CVI ?

    How to calc array length in Labwindows CVI ? In labwiew,I can find function to calc array length,but in CVI ,I can not ,...

    Hello 让一切随风 
    char  *name ;                              
    int length = 0;
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  • Finding Array Length

    I was just wondering if i have an array
    double [][][] array = new double [1][2][3];array.length only gives 1, what function can i use to find the size of the other dimensions (2 and 3)? Thanks in advance for any help.

    I'll try and explain this a little better.
    Say array[0].length is 2, then that means that there is only
    array[0][0] and array[0][1].
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    array[0][0][0], array[0][0][1], array[0][0][2], and array[0][0][3].
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    in my other post is because they would both return the same
    thing because of the way you declared the array.
    When you dodouble[][] array = new double[2][3];this is making it so that array[0].length is 3 and array[1].length is 3.
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  • This and super keywords, array.length attribute

    'this' and 'super' keywords and array.length attribute are declared in which java class?
    and also during running of a java program how they are initialized and how they work?

    'this' and 'super' keywords and array.length attribute are declared in which java class?They are not declared in any Java class, any more than the keywords 'class', 'interface', 'for', 'while', etc., are. They are defined in the grammar of the Java language, in the Java Language Specification.
    and also during running of a java program how they are initialized and how they work?That's much too large a question for a forum. Try reading the Java Tutorial.

  • Maximum possible ARRAY LENGTH ?!?!

    Hello All
    How can I know (before allocating memory) what is the maximum possible array length. Does it depend on the JVM version or OS or something else ???
    Please help !

    Thanx All !!!
    I've moved to more "memory saving" algorithm, so there is no problem now :-))
    But another 2 questions has poped up: I'm using a Vector object in a pretty long loop (millions of iterations) and once in a while accumulating some data (Long and Double objects) by adding them to the Vector.
    1. What can be the maximum possible vector length ?
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    double[] arr = new double[****];
    for(long i=0; i<Long.MAX_VALUE; i++)
        // add new elem
        double[] tmp = new double[arr.length+1];
        System.arraycopy(arr, 0, tmp, 0, arr.length);
        tmp[tmp.length] = newElem;
        arr = tmp;  
    }

  • Quick array length question...

    for this part of my code i'm trying to determine the components needed to find the average of my array. I can't seem to find a way to determine the length of my array (how many components it consists of). Every time I keep getting the dereferencing error....I know it's something simple but I just can't seem to get it right. Please help!
    int total = 0, mean = 0, length = 0;
    for(int j=0; j<i; j++)
    total = total + array[j];
    System.out.print(array[j]+" ");
    System.out.print(total);

    Hi Cher,
    This length attribute if any array object will give you the number of components I mean number of elements in that array.
    array.length; rather than array.length();
    This may be helpfull.
    int total = 0, mean = 0, length = 0;
    for(int j=0; j<array.length; j++)
    total = total + array[j];
    System.out.print(array[j]+" ");
    System.out.print(total);>
    Aski

  • Get Type ArrayElement  fails if array length is 0

    All:
    Get<Type>ArrayElement fails if the array length is 0 in 1.4. It seems to work fine in 1.5. I was "googling" and I found this link -- http://e-docs.bea.com/wljrockit/v315/relnotes/relnotes.htm. It mentions that this problem -- The JNI methods GetStringChars and Get<>ArrayElements threw OutOfMemoryError if called with a String or array of zero length -- was fixed in version 3.1.4. What is version 3.1.4 and how does this relate to JDK verions that I get out of java -version.
    I will appreciate any pointers.
    M.P. Ardhanareeswaran
    Oracle USA

    Drag and drop within a datagrid is rather an unusual thing to do.
    I would suggest your problem lies in choosing to do something which will cause complications.
    Hope that helps.
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  • Physical vs Logical length issues

    I am importing a fixed field flat file, and the file has a line with a special character in it. The datastore column in question is set to have a physical and logical length of 40 but ODI is erroring out saying the actual value is 41 characters. If I increase the logical length to 41 characters, but leave physical alone, the interface successfully loads the file to my relational destination.
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    I think you changed the physical to 41 and leaving the logical to be 40.
    I dont think you will cause any issues down the lane.
    This concept is very valid in situations where you would have multi-byte characters which will physically take more bytes to load even though the logical length is less

  • Table DD03L - Field Internal Length issue

    Our Basis team performed a system refresh from our Production ECC 6 server to our Sandbox server.
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  • File.length issues

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    Thank you.

    They do different things for different purposes. du reports total disk usage, so it rounds up to the next block size. File.length() reports actual file size in bytes.

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