How can I create an Array of ArrayLists?
As per Oracle Documentation: “You cannot create arrays of parameterized types” Instead, you could do: As suggested by Tom Hawting – tackline, it is even better to do:
Java
Using ADB to capture the screen
I’m trying to get a screenshot of the phone screen as fast as possible. Currently, I am doing: However it is too slow and takes up to 3 seconds. Is there any better way to do this? I intend to use this function with an unrooted phone. Also what are the different arguments I can … Read more
unused import statement for used ones in IntelliJ IDEA
I will assume that you want to use those imports in your code. The warnings, in gray, are suggesting you to remove imports of libraries that you are then NOT using in your code (in order to save resources and gain other advantages). The errors, in red, are related to the lack of availability of … Read more
Convert String array to ArrayList
Use this code for that,
Missing `server’ JVM (Java\jre7\bin\server\jvm.dll.)
To Fix The “Missing “server” JVM at C:\Program Files\Java\jre7\bin\server\jvm.dll, please install or use the JRE or JDK that contains these missing components. Follow these steps: Go to oracle.com and install Java JRE7 (Check if Java 6 is not installed already) After that, go to C:/Program files/java/jre7/bin Here, create an folder called Server Now go into the C:/Program files/java/jre7/bin/client folder Copy all … Read more
java.net.SocketTimeoutException: Read timed out under Tomcat
I have a Tomcat based web application. I am intermittently getting the following exception, Unfortunately I don’t have access to the client, so I am just trying to confirm on various reasons this can happen, Server is trying to read data from the request, but its taking longer than the timeout value for the data … Read more
Get all unique values in a JavaScript array (remove duplicates)
With JavaScript 1.6 / ECMAScript 5 you can use the native filter method of an Array in the following way to get an array with unique values: Run code snippetExpand snippet The native method filter will loop through the array and leave only those entries that pass the given callback function onlyUnique. onlyUnique checks, if the given value is the first occurring. If not, it … Read more
implicit super constructor Person() is undefined. Must explicitly invoke another constructor?
If a constructor does not explicitly invoke a superclass constructor, the Java compiler automatically inserts a call to the no-argument constructor of the superclass. If the super class does not have a no-argument constructor, you will get a compile-time error. Object does have such a constructor, so if Object is the only superclass, there is … Read more
error: unreported exception FileNotFoundException; must be caught or declared to be thrown
You are not telling the compiler that there is a chance to throw a FileNotFoundException a FileNotFoundException will be thrown if the file does not exist. try this
HTTP Status 405 – Request method ‘POST’ not supported (Spring MVC)
I found the problem that was causing the HTTP error. In the setFalse() function that is triggered by the Save button my code was trying to submit the form that contained the button. when I remove the document.submitForm.submit(); it works: @Roger Lindsjö Thank you for spotting my error where I wasn’t passing on the right parameter!