Parsing data with java is killing me

i created some data in notepad
which contains :: embedded in the data
my loop gets to the :: and does not see the ::
while
(Strpos < (line.length() ) ) {
index = Strpos +2;
colons = (line.substring(Strpos, index)) ;
System.out.println(colons);// i can see the value i'm looking at here
if (colons != "::")
displayline.append(line.substring(Strpos, Strpos + 1));
Strpos++;
the pgm always executes the displayline.append.
is this because i created the data in notepad
i'm really getting discouraged with java.

Essentiallly what you're trying to do here is compare Strings. By using the == operator (or != in your case), what you are actually comparing is the address location, which is always going to return true for you, since the address are going to be different (not equal for your code example). Try changing your if statment to the following:String colonMatch = "::"
if(!colons.equals(colonMatch)) // if you current search is not equal to a pair of colonsUsing the equals() method does a character by character comparison, which is what you are needing. I've made this mistake myself a few times, so no worries.
James

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<?xml version="1.0" encoding="UTF-8"?>
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import org.w3c.dom.Document;
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The parsed output is :
Attribute name is =input3 AND Attribute value is =aa[1]
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Attribute name is =input6 AND Attribute value is =cc[2]
Attribute name is =input8 AND Attribute value is =dd[7]
Attribute name is =output2 AND Attribute value is =ee[7]
Attribute name is =output4 AND Attribute value is =ff[511]
Attribute name   is =output6 AND Attribute value is =hh[1]]
Attribute name   is =output7 AND Attribute value is =hh[1]
THE LAST TWO LINES ARE SIMPLY WRONG.
With java 5.0 the last two lines are parsed correctly :
Attribute name   is =output6 AND Attribute value is =gg[15]
Attribute name   is =output7 AND Attribute value is =hh[1]
I have seen this issue only after I upgraded to java 6.0. I have searched the java 6.0 bug database but there is nothing there.
I have also submitted a bug to the bugdatabase last month but have not heared anything.
Anybody have any clue about this ???
Thanks
Edited by: skaushik on Jan 4, 2008 12:40 AM
Edited by: skaushik on Jan 4, 2008 6:38 PM

I have seen similar issue. I found that if you remove the square brackets from the first line in teh XML file, the last two lines are parsed correctly.
Replace the follwing line : :
Attribute name is =input3 AND Attribute value is =aa[1]
with :
Attribute name is =input3 AND Attribute value is =aa
and the output is CORRECT :
Attribute name is =input3 AND Attribute value is =aa
Attribute name is =input4 AND Attribute value is =bb[1]
Attribute name is =input6 AND Attribute value is =cc[2]
Attribute name is =input8 AND Attribute value is =dd[7]
Attribute name is =output2 AND Attribute value is =ee[7]
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Attribute name   is =output6 AND Attribute value is =gg[15]
Attribute name   is =output7 AND Attribute value is =hh[1]

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Parsing data with java is killing me

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