I’m trying to send HTTPS request from my Java EE program to the host that requires certificate authentication. I have a proper keystore file, truststore with imported CA, the listing of both shows that certificates are inside. But I receive the following error: Viewing the certificate contents in the pa…
Tag: java
Are recursive methods always better than iterative methods in Java? [closed]
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How to convert list data into json in java
I have a function which is returning Data as List in java class. Now as per my need, I have to convert it into Json Format. Below is my function code snippet: I tried To convert into json by using this code but it is giving type mismatch error as function is of type List… Please help me resolve this.
Josephus sequence
Description: There are people standing in a circle waiting to be executed. The counting out begins at some point in the circle and proceeds around the circle in a fixed direction. In each step, a certain number of people are skipped and the next person is executed. The elimination proceeds around the circle (…
Selenium / Firefox: Command “.click()” doesn’t work with a found element
I tried to find a solution to this thing and I spent a lot of time, but it is almost imposible to me to do that. The matter: I am using Selenium with Java in Firefox. I need to find an element (a listbox) and click on it. So, the code finds the element, but click action does not work.
Why does this Java method appear to have two return types?
where Foo is my own class. What is the return type of this method? Why does it seem to have two return types? Answer No, you don’t have two return types. It’s a generic method you are seeing. <E extends Foo> → You are declaring a generic type for your method; List<E> → This is your ret…
Exception in thread “main” java.awt.AWTError: Assistive Technology not found
How to solve this error? Exception in thread “main” java.awt.AWTError: Assistive Technology not found: com.sun.java.accessibility.AccessBridge at java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:775) at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:861) at java.awt.Window.getToolkit(Windo…
java.lang.NoClassDefFoundError while reading a svg file as BufferedImage
i have a .svg file to create a Map which will have Listeners relevant to boundaries (i guess its called “nodes” of a scalable vector graphic). However, i’m trying to add this file as a BufferedImage over a JPanel. (i’m a newbie about swing components so if you have any better ideas ple…
How to change Spring’s @Scheduled fixedDelay at runtime?
I have a requirement to run a batch job at a fixed interval and have the ability to change the time of this batch job at runtime. For this I came across @Scheduled annotation provided under Spring framework. But I’m not sure how I’d change the value of fixedDelay at runtime. I did some googling ar…
Exception in thread main java.util.InputMismatchException error
I have a question on what’s going on, whenever I try to compile it it keeps giving me an error like this: All I want is for the user to be able to input their age and name and have it stored in the “age” and “name” variables, then have it print it out in the bottom string. And if