How-to articles, tricks, and solutions about JAVA
JUnit 5: How to assert an exception is thrown?
To read a text file in Java, you can use the BufferedReader class from the java.io package.
How to evaluate a math expression given in string form?
There are a few different ways to evaluate a math expression given in string form:
Java: How to read a text file
To read a text file in Java, you can use the BufferedReader class from the java.io package.
ArrayList of int array in java
To create an ArrayList of int arrays in Java, you can use the following syntax:
how to add button click event in android studio
To add a button click event in Android Studio, follow these steps:
Convert JsonObject to String
To convert a JsonObject to a String in Java, you can use the JsonObject.toString method.
Key existence check in HashMap
To check if a key exists in a HashMap in Java, you can use the containsKey method.
Wait for page load in Selenium
In Selenium, you can use the WebDriverWait class to wait for a page to load.
How can I check if a value is of type Integer?
To check if a value is of type Integer in Java, you can use the instanceof operator.
How to do URL decoding in Java?
To decode a URL in Java, you can use the URLDecoder class from the java.net package.