- Declare a static variable as private member of the class.
- Increase the static variable's value by 1 and assign it to the ID variable.
java exception
Type: Posts; User: hns1984
- Declare a static variable as private member of the class.
- Increase the static variable's value by 1 and assign it to the ID variable.
java exception
The above section caused the problem. The rows object is initialized only once by the Search() function. You should re-design the CustomTableModel, for example, adding some methods to update the...
Do you use any threads? If not, that is the problem, because the progress bar's GUI is freezing until the download tasks completes. You need to create two threads:
- one for running the download...
Could you please give an example about that?
I have been using NetBeans to design GUI for my apps and I rarely have to change the code manually.
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Look at this section:
String itemName = item.getName();
String folder="C:/Users/dr saiful/My Documents/NetBeansProjects/master_temporal/web/data/"+itemName;
File saveFile=new File(folder);...
Hi,
Have a good day:) I am a little bit good at Java.
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Wrong. NetBeans allows you to customize the generated code. If you don't like something, you can change manually.
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The above code compiled successfully.
The error in your screenshot shows line number 69, but the above code has only 46 lines total. So I think you did not post the right code.
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Hello, nice to meet you!
I am specialized in Swing apps and web apps also.
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You must escape the & character as a XML element: &
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Use setPreferredSize() method, instead of setSize()
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Hi, what are you confusing about? Aren't you the owner of the code?
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Yes, you're in the right way to use PreparedStatement. Sorry I don't have any examples in my hand, but this may help you: Using Prepared Statements (The Java™ Tutorials > JDBC(TM) Database Access >...
Which version of Eclipse are you using? What's the error message that Eclipse complaints?
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- Try to use "Import Existing Projects into workspace", it should work.
- You can copy and paste a project. That equivalents to the Save as.
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Well, I am afraid that no one ever done that before. Sending SQL statements through network is a bad practice. Consider to build SQL queries on the server, the client only send required parameters...
Hi, what are you trying to understand the code? Why don't try it yourself then ask questions for problems you may encounter?
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What kind of errors do you mean?
If you mean syntax error, so there is a java compiler that checks the code against Java syntax.
If you mean design flaws or bad practices, have a look at Sonar...
Wrong, float literal is a double value, implicitly.
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Because the literal "7.0" is implicit double value, so the result of 7.0/2 will be a double number, theno you need to put a type cast (int) to convert the result into an integer which is assigned to...
You need to create a Java Dynamic Web project, then Eclipse will compile your JSP pages just like other java classes. You will see compile errors and autocomplete things.
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Check the PDF's file path that your program is about to read, most likely using relative pass causes the problem.
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There is another much simpler way:
- Iterate over the list, adding each item to a Set.
- Since Set does not allow duplicate items, so the result is a set of unique items.
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Do not use operators like == or != to compare Strings, use String's equals() method is the correct way.
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Thanks for a good article!
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