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  • Do you find java.util.logging sufficient?

    - by Yuval A
    Per the title, do you find the default Java logging framework sufficient for your needs? Do you use alternative logging services such as log4j or others? If so, why? I'd like to hear any advice you have regarding logging requirements in different types of projects, and when integrating frameworks is actually necessary and/or useful.

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  • Java phone dialer

    - by Galaxy
    Hi, I want to develop phone dialer application, the app is to use modem to dial phone numbers and play voice messages . which java api is to be used,other wise is their opensource IVR paltform to serve that ?

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  • Checking for a null int value from a Java ResultSet

    - by ian_scho_es
    In Java I'm trying to test for a null value, from a ResultSet, where the column is being cast to a primitive int type. int iVal; ResultSet rs = magicallyAppearingStmt.executeQuery(query); if (rs.next()) { if (rs.getObject("ID_PARENT") != null && !rs.wasNull()) { iVal = rs.getInt("ID_PARENT"); } } From the code fragment above, is there a better way to do this, and I assume that the second wasNull() test is redundant? Educate us, and Thanks

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  • How to add days to a date in Java

    - by terrific
    I want to add days to a date to get a new date in Java. How to achieve it using the Calender class. Calender dom = new GregorianCalender(d, m y); is the instance of my date of manufacture and I want to reach to date of expiry adding some 100 days to the current date and store it in doe but unable to do that. Any help would be appreciable.

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  • Equivalent of IllegalArgumentException of Java in C++

    - by vito
    In Java if an input argument to a method is invalid, we can throw an IllegalArgumentException (which is of type RuntimeException). In C++, there is no notion of checked and unchecked exceptions. Is there a similar exception in standard C++ which can be used to indicate a runtime exception? Or is there a common style not in the standard but everyone follows in practice for a situation like this? Or, should I just create my own custom exception and throw it?

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  • Removing HTML from a Java String

    - by Mason
    Is there a good way to remove HTML from a Java string? A simple regex like replaceAll("\\<.*?>","") will work, but things like &amp; wont be converted correctly and non-HTML between the two angle brackets will be removed (ie the .*? in the regex will disappear).

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  • Java Packages in Seperate repository than others

    - by sethxian
    I was wondering if it's possible to have a java package setup using a different subversion repository than the rest. Ideally, I would probably go with a different library project, but in the case of BlackBerry, the 3rd party library linking does not work well, so I would like to just separate my UI package into a different repository than the rest so that I can control the UI better for different OS versions, but leave all the other packages the same. Is this possible?

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  • Detect use of older Java libraries

    - by Tony Morris
    Is there a third party library to detect the use of a Java 1.5 library when compiling with a 1.5 compiler with -source 1.4 and -target 1.4? I could use a 1.4 rt.jar in the bootclasspath however I hope there is a better way. To be used, for example, to fail the compile/build if a newer library is used.

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  • java classcast exception

    - by shil
    hi i have problems in converting an XML document type into a Document object.. this is the piece of code line 1 : Document doc=null; line 2 : doc = (Document) parser.parse(sourceFile); for this line 2 it throws java classcast exception.. without the typecast it shows error as "Type mismatch: cannot convert from org.w3c.dom.Document to javax.swing.text.Document" how do i now typecast properly? any suggestions??

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  • Escaping comma in java

    - by prasanna
    I have a string which is fed into the query as IN clause,which looks like this ('ACT','INACT') which is one of the parameters to a function inside a package.when a call is made to the function from java, it looks like this call package.function(1,2,3,('ACT','INACT'),4,5). When the package is called,i get error as wrong type of arguments. It is taking the values inside brackets as different values delimited by strings

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  • Pushing a mail include to a java program

    - by Marthin
    Hi, I have a Windows Server that recives mail. These mail contains only 1 single CSV file. I want my server to automatically take the attachment from any incoming mail and send to a java program locally installed. Is there anyone who can give me directions on any programs that fix this or do I need to create some kind of windows service? Thankful for any help!

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  • Converting String to int in Java and getting a NumberFormatException, can't figure out why

    - by user1687682
    ipString is a String representation of an IP address with spaces instead of dots. String[] ipArray = ipString.split(" "); String ip = ""; for (String part : ipArray){ if (part != null){ ip += part } } ip = ip.trim(); int ipInt = Integer.parseInt(ip); // Exception is thrown here. Exception in thread "main" java.lang.NumberFormatException: For input string: "6622015176". Could someone explain why this exception is being thrown?

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  • roundoff double values in Java

    - by S.PRATHIBA
    Hi all, I have a matrix.I found the 10th power of matrix using Java.After finding the 10th power,I need to round off the double values to 3 decimal places.Please help me to round off the double values in the matrix to 3 decimal places.

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  • Problem in java.util.Set.addAll() method

    - by Yatendra Goel
    I have a java.util.Set<City> cities and I need to add cities to this set in 2 ways: By adding individual city (with the help of cities.add(city) method call) By adding another set of cities to this set (with the help of cities.addAll(anotherCitiesSet) method call) But the problem in second approach is that i don't know whether there were any duplicate cities in the anotherCitiesSet. I want to do some processing whenever a duplicate entry is tried to be entered in thecities set.

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  • String array definition in JAVA

    - by Mohamed KALLEL
    Is it possible to define array in this way in JAVA, otherwise are there an alternative close this definition? private final int CONST_0= 0; private final int CONST_1= 1; private final int CONST_2= 2; private final int CONST_3= 3; private final String[] CONST_TXTRECORDS = new String[] {[CONST_0] = "test0", {[CONST_1] = "test1", {[CONST_2] = "test2", {[CONST_3] = "test3"};

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  • how set vertical marquee in java application?

    - by Arivu2020
    Hi, I am creating one application in java using swing.In that i have an array of String, I try to use html marquee tag to scroll all the strings one by one from top to bottom.But the marquee tag doesn't support in the panel. How can i acheive it.Can any one suggest me? Thanks in advance

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