Error Line Number Java
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Java Number Of Lines In A Text File
Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, java number of lines in a string just like you, helping each other. Join them; it only takes a minute: Sign up How can we print line numbers to the log in java up vote 91 down vote favorite 27 How to print java linenumber line numbers to the log. Say when outputting some information to the log, I also want to print the line number where that output is in the source code. As we can see in the stack trace, it displays the line number where the exception has occurred. Stack trace is available on the exception object. Other alternative could be like manually including the line number when printing to the log. Is there any other
Java Try Catch Exception Line Number
way? java logging share|improve this question edited Sep 22 '08 at 14:05 Justin Bennett 3,94422026 asked Sep 22 '08 at 14:02 Bobby Kumar 5,06851621 see @Juan's underappreciated answer below for a short and sweet one-liner! i just gave up 15 points rep downvoting all other answers :v and upvoting Juan's –necromancer Aug 29 '14 at 0:04 add a comment| 17 Answers 17 active oldest votes up vote 67 down vote From this guy: /** Get the current line number. * @return int - Current line number. */ public static int getLineNumber() { return Thread.currentThread().getStackTrace()[2].getLineNumber(); } share|improve this answer answered Sep 22 '08 at 14:05 Simon Buchan 8,1762741 1 This will always return the line number of the return statement in the called method and not necessarily the line number of the method call. –Ron Tuffin Sep 22 '08 at 14:13 Does not the [2] get the frame above getLineNumber()? ([1] being getLineNumber(), and [0] being getStackTrace(), presumably) –Simon Buchan Sep 22 '08 at 14:17 1 I played around a bit and if you use blah.getStackTrace[3].getLineNumber() as the method body it returns the line number of where the method was called. –Ron Tuffin Sep 22 '08 at 14:27 1 Thats just weird. –Simon Buchan Sep 22 '08 at 23:57 8 The index will
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the how to get the line number of a file in java workings and policies of this site About Us Learn more about Stack getlinenumber java Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs
Log4j Line Number
Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join http://stackoverflow.com/questions/115008/how-can-we-print-line-numbers-to-the-log-in-java them; it only takes a minute: Sign up Dynamically get the current line number up vote 15 down vote favorite 2 Is there a way in Java to dynamically get the current line number through reflection or some awesome API? Just like when exceptions occur, the line number gets printed out in the stack trace like this: at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:348) Now http://stackoverflow.com/questions/17473148/dynamically-get-the-current-line-number is there a way to print or log like in the below code? log.error("Error in: " + this.getClass.getName() + "at line #"+ this.getClass.getActualLine()); You may ask, why don't I simply print the line number? Well because the code may get deleted or added before the specific log.error() method call. java reflection share|improve this question edited Jul 4 '13 at 16:35 Joachim Sauer 184k35393501 asked Jul 4 '13 at 14:45 VSZM 4282518 2 Doesn't PatternLayout of logging API's comes handy for this? –sadhu Jul 4 '13 at 14:50 You could create a new Throwable and access the stack trace elements. See stackoverflow.com/questions/115008/… –Andreas Fester Jul 4 '13 at 14:51 2 @Andreas: you don't need a Throwable: Thread.getStackTrace() is sufficient. –Joachim Sauer Jul 4 '13 at 14:54 @Joachim hmmm, this returns -1 for the line number for me ... –Andreas Fester Jul 4 '13 at 14:57 1 Ah got it - the elements of the arrays are different .... –Andreas Fester Jul 4 '13 at 15:01 | show 2 more com
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss http://stackoverflow.com/questions/14235687/can-we-get-linenumber-and-columnnumber-in-try-block-at-which-exception-occured the workings and policies of this site About Us Learn more about http://stackoverflow.com/questions/25174761/why-some-stacktrace-do-not-have-line-number-in-java Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each line number other. Join them; it only takes a minute: Sign up Can we get LineNumber and ColumnNumber in try block at which exception occured up vote 6 down vote favorite I have the below code with which i am able to print the fullclassname,classname,methodname, at which error occured. Also, I am able to print Line-Number but the Line-Number printed java number of is the line at which the variable "LineNumber" is initialized. How can i print the exact LineNumber and ColumnNumber in try block at which error occured? try { SQL Query } catch(Exception e) { String fullClassName = Thread.currentThread().getStackTrace()[1].getClassName(); String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1); String methodName = Thread.currentThread().getStackTrace()[1].getMethodName(); int lineNumber = Thread.currentThread().getStackTrace()[1].getLineNumber(); JOptionPane.showMessageDialog(null,fullClassName+"--"+className+"--"+methodName+"--"+lineNumber,"Error In Moving data from table1 to table2",JOptionPane.ERROR_MESSAGE); } Ouput: IPM.Shifting--Shifting--ConfirmTransfer_BActionPerformed--1138 java exception exception-handling try-catch catch-block share|improve this question edited Jan 9 '13 at 17:38 asked Jan 9 '13 at 12:55 Akki 356520 1 Have you tried e.getStacktrace instead of Thread.currentThread().getStackTrace? –Fildor Jan 9 '13 at 12:59 I tried it but not getting the required output. Output:[Ljava.lang.StackTraceElement;@fa39d7 @Fildor –Akki Jan 9 '13 at 17:35 add a comment| 4 Answers 4 active oldest votes up vote 3 down vote public class ExceptionHandler { /** * @param args */ public static void main(String[] args) { try { String str = getString(); if(str.isEmpty()){ System.out.println("error"); } } catch (Exception e) { StackTraceElement[] elements = e.getStackTrace(); for (int iterator=1; iterator<=elements.length; iterator++) System.out.println("Class Name:"+elements[iterator-1].ge
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Why some stacktrace do not have line number in java up vote 5 down vote favorite I have a bug from my customer and when I look into the log we trace the exception, some of the stacktrace do not have line number: at xxxx.xxx.xx.x.xx.DayIntervalRule.getInterval(DayIntervalRule.java) at xxxx.xxx.xx.x.xx.XXSchedule.getNextDueDate(XXSchedule.java) at xxxx.xxx.xx.x.xx.XXSchedule.evaluateRules(XXSchedule.java) Please note that: I have replace the package name into something like"xx"),and all of the class and method are defined in our application: The full stack trace are as below: java.lang.NullPointerException at xxxx.xxx.xx.x.xx.DayIntervalRule.getInterval(DayIntervalRule.java) at xxxx.xxx.xx.x.xx.XXSchedule.getNextDueDate(XXSchedule.java) at xxxx.xxx.xx.x.xx.XXSchedule.evaluateRules(XXSchedule.java) at xxxx.xxx.xx.x.xx.EvaluateRulesVistor.visitXXNode(EvaluateRulesVistor.java:56) at xxxx.xxx.xx.x.xx.XXNode.accept(XXNode.java:396) at xxxx.xxx.xx.x.xx.AssetXX.traverseForest(AssetXX.java:351) at xxxx.xxx.xx.x.xx.AssetXX.run(AssetXX.java:70) at xxxx.xxx.xx.x.xx.XXEngine.doForecast(XXEngine.java:437) at xxxx.xxx.xx.x.xx.XXEngine.forecastWorkOrders2(XXEngine.java:380) I am interested in why this happens?Is it possible that my customer do something to the existing code(customization)? java exception stack-trace printstacktrace share|improve this question asked Aug 7 '14 at 5:24 Jaskey 3,92423060 add a comment| 1 Answer 1 active oldest votes up vote 5 down vote accepted The code that does not display line numbers was compiled without debug information. share|improve this answer answered Aug 7 '14 at 5:27 Mureinik 101k2054103 2 Thank you for your answer? What do you mean compiled without debug information? And I read stackoverflow.com/que