There’s Not that it does anything different than you’d do on your own (it just loops through every element and sets it to null). It’s not native in that it’s pure Java code that performs this, but it is a library function if maybe that’s what you meant. This of course doesn’t allow you to resize the array (to … Read more
I’ve finally solve the problem!! @RobG was right about the form tag and table tag. the form tag should be placed outside the table. with that, works without the need of jquery or anything else. simple click on the button and tadaa~ the whole form is reset 😉 brilliant!
This Short introduction to log4j guide is a little bit old but still valid. That guide will give you some information about how to use loggers and appenders. Just to get you going you have two simple approaches you can take. First one is to just add this line to your main method: Second approach is to … Read more
These are the steps which solved my problem: Search the path where my java was installed find / -name jre Move to java directory (where jre was installed on my server) cd /path/to/jre/bin Create SSL certificate with keytool command ./keytool -genkey -alias [mypassword] -keyalg [RSA]
Please refer to these two links: How to fix android studios 2.3 NDK bug? https://github.com/requery/requery/issues/467 This is caused by upgrading to Android gradle plugin 2.3 (com.android.tools.build:gradle:2.3.0). In previous versions of the plugin the databinding package name (where the BR file is generated) was provided on an annotation in a generate file. In the new version … Read more
You could define callFriend this way: Then call it as such: This code has the benefit of not generating any compiler warnings. Of course this is really just an updated version of casting from the pre-generic days and doesn’t add any additional safety.
You need to use the new operator when creating the object or else and your constructor shouldn’t contain void. Else it becomes a method in your class.
It redefines “equality” of objects. By default (defined in java.lang.Object), an object is equal to another object only if it is the same instance. But you can provide custom equality logic when you override it. For example, java.lang.String defines equality by comparing the internal character array. That’s why: Even though you may not need to … Read more
If all of your classes are in the same package, you shouldn’t need to import them. Simply instantiate the object like so: CustomObject myObject = new CustomObject();
The java and javac executables are using the PATH environment variable, while intelliJ is using JAVA_HOME variable. Remove the additional quotation marks in your JAVA_HOME value. It might shows that your path to the jdk installation directory is hard coded in the PATH, rather then using %JAVA_HOME%.