akhil - Page 2 - Developer IT

strange error in running executable files (linux)

- by Akhil

I try to run an executable file on newly installed Ubuntu and I get this strange error ./hadoop hadoop : Not a directoryh hadoop hadoop command not found the first error says "directoryh", what is the reason for these messages

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Programming error in Java Socket

- by Akhil K Nambiar

Can you tell me what is the error in this code? Socket socket = new Socket(hostname, port); PrintWriter out = new PrintWriter(socket.getOutputStream(), true); //DataInputStream is = new DataInputStream(socket.getInputStream()); out.println("hi"); System.out.print(in.readLine()); The Server Socket program is written in .Net and it echoes back the data. The data is sent successfully but could not be retrieved properly. I tried the same by using the linux command nc 192.168.1.6 8425 (enter) Hi (Sent data) Hi (recieved data) When I checked the code the data is found to have sent as byteStream in .Net. Is that a problem. In that case what modification should I make.

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enable and disable broadcast receiver on button click

- by Akhil

i want to enable and disable broadcast receiver programatically.. The receiver shouldn't respond until it is programatically turned on.. i did dee some similar questions but non of the answers worked.. please help... i tried this code but didn't work.. PackageManager pm = getApplicationContext().getPackageManager(); ComponentName componentName = new ComponentName("mypackage", ".receivername"); pm.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);

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How to add root node in the output method = text

- by Akhil

My sample input is <?xml version="1.0" encoding="UTF-8"?> <ns0:JDBC_RECEIVERDATA_MT_response xmlns:ns0="urn:parmalat.com.au:TESTSQL_REPLICATION"> <Statement_response> <response_1> <row> <XML_F52E2B61-18A1-11d1-B105-00805F49916B><![CDATA[<TransactionLog TID="1400" SeqNo="3337446" SQLTransaction="Insert into TankerLoads Values(141221,53,299,18,1,426148,6,'Nov 19 2007 12:00AM','Dec 30 1899 12:59PM',3.00,20682,0,'Zevo','Nov 19 2007 12:00AM',0)"/></row> <row> <XML_F52E2B61-18A1-11d1-B105-00805F49916B>um = 141221"/><TransactionLog TID="1400" SeqNo="3337452" SQLTransaction="Insert into MilkPickups Values(790195,141221,0,&apos;Nov 19 2007 12:00AM&apos;,2433,&apos;Nov 19 2007 12:00AM&apos;,&apos;Dec 30 1899 11:26AM&apos;,3131,2.90)"/> Like this I have mutiple records and my output should be like <root> <TransactionLog TID="1400" SeqNo="3337446" SQLTransaction="Insert into TankerLoads Values(141221,53,299,18,1,426148,6,'Nov 19 2007 12:00AM','Dec 30 1899 12:59PM',3.00,20682,0,'Zevo','Nov 19 2007 12:00AM',0)" /> <TransactionLog TID="1400" SeqNo="3337447" SQLTransaction="Update TankerLoads Set TankerNum = 53,DriverNum = 299,CarterNum = 18,MilkTypeNum = 1,SampleNum = 426148,ReceivalBayNum = 6,UnloadDate = 'Nov 19 2007 12:00AM',UnloadTime = 'Dec 30 1899 12:59PM',Temperature = 3.00,Volume = 20682,NetWeight = 0,WeighbridgeDocket = 'Zevo',LoadPickupDate = 'Nov 19 2007 12:00AM',IsValidated = 0 Where TankerLoadNum = 141221" /></root> AND I AM USING OUTPUT METHOD AS TEXT BECAUSE IF I USE XML THE TAG ARE REPLACED WITH &LT &GT WHICH I DONT MOREOVER IF YOU SEE THE ABOVE TWO ROWS THE LAST LINE IS HALF THE RECORD IS IN THE FIRST ROW AND CONTINUING THE OTHER HALF IN THE SECOND ROW SO i USED WHICH LEAVES SINGLE SPACE SO EVEN I DONT WANT THAT SINGLE SPACE..I HOPE I AM CLEAR IF NOT PLEASE LET ME KNOW I WILL ADD MORE COMMENTS..TPLEASE HELP ME OUT..THNKYOU

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Welcome To The Nashorn Blog

- by jlaskey

Welcome to all. Time to break the ice and instantiate The Nashorn Blog. I hope to contribute routinely, but we are very busy, at this point, preparing for the next development milestone and, of course, getting ready for open source. So, if there are long gaps between postings please forgive. We're just coming back from JavaOne and are stoked by the positive response to all the Nashorn sessions. It was great for the team to have the front and centre slide from Georges Saab early in the keynote. It seems we have support coming from all directions. Most of the session videos are posted. Check out the links. Nashorn: Optimizing JavaScript and Dynamic Language Execution on the JVM. Unfortunately, Marcus - the code generation juggernaut, got saddled with the first session of the first day. Still, he had a decent turnout. The talk focused on issues relating to optimizations we did to get good performance from the JVM. Much yet to be done but looking good. Nashorn: JavaScript on the JVM. This was the main talk about Nashorn. I delivered the little bit of this and a little bit of that session with an overview, a follow up on the open source announcement, a run through a few of the Nashorn features and some demos. The room was SRO, about 250±. High points: Sam Pullara, from Twitter, came forward to describe how painless it was to get Mustache.js up and running (20x over Rhino), and, John Ceccarelli, from NetBeans came forward to describe how Nashorn has become an integral part of Netbeans. A healthy Q & A at the end was very encouraging. Meet the Nashorn JavaScript Team. Michel, Attila, Marcus and myself hosted a Q & A. There was only a handful of people in the room (we assume it was because of a conflicting session ;-) .) Most of the questions centred around Node.jar, which leads me to believe, Nashorn + Node.jar is what has the most interest. Akhil, Mr. Node.jar, sitting in the audience, fielded the Node.jar questions. Nashorn, Node, and Java Persistence. Doug Clarke, Akhil and myself, discussed the title topics, followed by a lengthy Q & A (security had to hustle us out.) 80 or so in the room. Lots of questions about Node.jar. It was great to see Doug's use of Nashorn + JPA. Nashorn in action, with such elegance and grace. Putting the Metaobject Protocol to Work: Nashorn’s Java Bindings. Attila discussed how he applied Dynalink to Nashorn. Good turn out for this session as well. I have a feeling that once people discover and embrace this hidden gem, great things will happen for all languages running on the JVM. Finally, there were quite a few JavaOne sessions that focused on non-Java languages and their impact on the JVM. I've always believed that one's tool belt should carry a variety of programming languages, not just for domain/task applicability, but also to enhance your thinking and approaches to problem solving. For the most part, future blog entries will focus on 'how to' in Nashorn, but if you have any suggestions for topics you want discussed, please drop a line. Cheers.

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