How-to articles, tricks, and solutions about JAVA
Java: parse int value from a char
To parse an integer value from a char in Java, you can use the Character.getNumericValue() method.
javac not working in windows command prompt
If javac is not working in the Windows command prompt, there could be several reasons for this.
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.
Key existence check in HashMap
To check if a key exists in a HashMap in Java, you can use the containsKey method.