How would I go about only inserting an item if the item does not have the same name as the other items in the arraylist within my insertUniqueItem() method? Answer You need to check if an item with the same name already exists in your list:
Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/log4j/ProvisionNode
I’m running some very old legacy code, which has worked in the past. This time, it’s giving me the following error The line that causes the error is in the Logger class defined by log4j. I have log4j 1.2.17 included in the code, which is the most up-to-date version according to maven. Has anyone e…
Error:java: javacTask: source release 8 requires target release 1.8
Using IntelliJ IDE can’t compile any projects. Screenshots of settings below: Used JDK: Project SDK and Language level: Language Level: Anybody have any ideas? Answer Go to File > Settings > Build, Execution, Deployment > Compiler > Java Compiler If on a Mac, it’s under Intellij IDEA &…
Why doesn’t Android Studio recognize Base64.encodeBase64?
I’m trying run the following code, however I cannot use encodeBase64(). I’ve already tried to import such libraries using Alt + Enter. How can I make it work? Answer use this: instead of what you are using, i also advise you to use: .getBytes(“UTF-8”); instead of data.getBytes(); UTF-8…
Java 6 json parsing [closed]
I’ve been using org.json for all my parsing needs in the past but now I’m deploying to a websphere application server v 7.0.0.22 which runs java 6 and I’m seeing unsupported exceptions indicating the …
HTTP GET with request body RETROFIT
I am using Retrofit to make api calls in my android application. I have to submit a @Body of JSON I get error message Have you any idea? Answer To send data along with your Get Request you can do the following: as said in this SO answer, Server semantics for GET, however, are restricted such that a body, if
Powershell install Java silently
I need to install new Java update silently. I have these arguments for installation: and I tried: and also: and both version has prompt dialog. How to install it silently? Answer I found solution in cmdLet Execute-Process via this script. Works fine! And calling it:
Fastest way to sort an array of objects in java
I have a Class called apple which contains 3 values as int x, int y and int weight. Then i created an array of apple type objects. Now i want to sort the the array of objects based on weight meaning the the apple object with the lowest weight should be first and so on. I know there are quite
Selenium Select – Selecting dropdown option by part of the text
The class Selenium Select has 3 methods of different option selection: selectByIndex selectByValue selectByVisibleText Now, I have a situation where I want to select an option by some text that partially appear in one of the options visible text (don’t want to expose myself to changes in the WHOLE text)…
Error: This fragment should provide a default constructor (a public constructor with no arguments)
My class extends DialogFragment like this: And this is how i am using it in Activity: And calling like this: But I am always getting : Answer The newer version of Android SDK forces you to get a empty, no-args constructor. It’s now a good practice to do this. This allows you to save the instance state i…