The nextInt() method of the Java scanner class reads the integer values from the input provided. This method spots the integer value from the declared string.

The nextInt() method of the Random class in Java returns the next random integer value from the random number generator sequence

The Stream flatMap() method not only maps the elements of a stream to a news stream but also flattens the stream and returns the output

The do-while loop in Java runs the block of code at least once then it repeatedly executes the code block until the declared condition remains “True”.

The String concat() method in Java connects the two strings together. The concat() method can join more than one string to a single string.

An element from the ArrayList in Java is removed using different methods which are remove(), removeIf(), valueOf(), and listIterator.remove() method

The length variable calculates the size of the array whereas the character count of the string is calculated using the length() method of Java.

The prefix increment returns the value of the variable incremented by 1 and the postfix increment returns the original value and then increments it by 1.