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TextArea does not support any html content. You can use a JEditorPane to display HTML or a JTextPane,
Regards
Shubhashish
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Thanks Shubhashish, but i am not taking about html content in jtextarea,i want to add jTables in jTextArea or jTeaxtPane
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can I perform a statistical computation in JTables?
Like I can get the summation of a column.
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I have two arrays a[] and b[].
Where:
int a[]={3,1,1,1,7,4,6,6,3,1};
int b[]=new int[a.length];
Array size in actual problem can change.
The values in the array must be less then value of array length as seen.
The output must be:
b = 3 1 0 0 7 4 6 0 3 1
So basically if there is a sequence of same value in a[] then only 1st of its value must be placed at same index in b[] rest should be zero till the sequence exists.
Answer in java syntax will be helpful. Thank you in advance
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So you need to take the first value of a and copy it to b, at the same time making a note of that value. Then take the next value and if it is different store it in b, if it is the same store 0. Repeat until you reach the end of a. A simple for loop with an if statement should do it.
Use the best guess
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I have a question with the performance of the LS method used with java class, ChannelSftp in a windows java program. The outputPath below is pointing to a UNIX folder:
JSch.setLogger(new MyLogger());
JSch jsch = new JSch();
Session session = null;
String password = "<Password>" + "";
//Create session for sftp files with remote server
session = jsch.getSession(username,server,22);
session.setConfig("StrictHostKeyChecking","no");
session.setPassword(password);
session.connect();
//Create channel for sftp files with remote server
Channel channel = session.openChannel("sftp");
channel.connect();
ChannelSftp sftpChannel = (ChannelSftp) channel;
sftpChannel.cd(sftpChannel.getHome());
sftpChannel.cd("<outputPath>");
Vector matchedFiles = sftpChannel.ls("<vuser>-<DateField>-" + "*PAIN*.xml");
The more files that are in the outputPath folder the longer the LS method takes. If I delete all files in outputPath, the method takes less than 1 second. As the number of files increase in outputPath, it may take much longer. With over 180K files, LS has taken 90+ seconds. I changed my code to do a get of a remote known UNIX file in the very large folder and it returned to the local folder in less than 1 second. In many cases my LS command with wildcards will return only 1 file and this may take a long time again depending on the number of files in the UNIX folder. The code I am developing is time sensitive and used to measure response times of a file handling system.
Anyone have any suggestions?
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Member 10213693 wrote: Anyone have any suggestions?
Yes, you need to understand that the ls command will read every entry in a directory in order to provide the list of files. This holds true even if using wildcards (e.g. ls mytype*) as it needs to compare the name of every file. With a directory containing 180,000+ files this time will be significant. There is nothing you can do to reduce this other than divide the files set into subdirectories which all contain some easily searchable subset.
Use the best guess
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Thanks for the quick response. It is not an option for me to split the files into sub directories or delete files as I process them. Are there any other java classes that can do what I am attempting to do that perform better
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Member 10213693 wrote: Are there any other java classes that can do what I am attempting to do that perform better
How could they? As I explained to you, the only way you can get a list of files is by processing every file in the directory and ignoring the ones that don't match your search pattern.
Use the best guess
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Anyone have any idea's for a program that is useful any not too complected to make for example not something that can calculate the suns rotation every 3 seconds , maybe something help with games, utilities? maybe something that hasn't really been made before? any ideas?
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If we knew that we would probably be writing it ourselves. Think of something that is within the realms of your own interests and experience.
Use the best guess
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how can i develop animation using c#
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I want to make an animation with java but now I can not do that so, if you can please help me
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By writing code, how else? Take a look at this[^] and other Java tutorials.
Use the best guess
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1. Learn basic Java
2. Learn advanced GUI processing in Java.
3. Learn about animation itself.
4. Find examples of animation programming and use 1-3 to create Java code.
Steps are in order of learning.
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Hi everyone i just want to know that what is difference between debugging,deploying and runing a program in java?
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It seems you have posted this question on quite a few forums[^]. Whereas reading some basic documentation would explain it to you.
- Run: execute a compiled program to achieve its desired results.
- Debug: same as run, but within a debugger program to diagnosde faults.
- Deploy: install a compiled program on other computers.
Use the best guess
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I have java tcp socket programming...... In that i need to send a file from client to server .... at the same time i need to chat with that client ...... by what way i can do this ... one way is multi connection .... is there any other way??????
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You would need one socket for the file transfer and another for the chat.
Use the best guess
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Or he could stick to one socket, and send serializables of a fixed length. Doing file > byte arrays > socket to keep the socket from getting to jammed up, and it should be safe since he's using TCP.
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santhosh kumar bhagavathi m wrote: is there any other way??????
Yes.
The socket sends and receives messages - not data.
Messages a posted to a sychronized queue. The socket receiver packages the data and sends the message. The receiver gets a message, determines the type (file or chat) and then posts it to the appropriate place.
The file transfer itself has the highest impact but the chat has very low bandwidth needs so you set the chat to have a higher priority, such that waiting chat messages are always sent before file messages.
The file would be broken into chunks. perhaps 1meg or 100k.
There are variations on the above. The two socket situation could, with a bit of fuzziness, even said to be said to be a variation of this. In that case each socket is just acting like a queuing device.
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