To input a string in Java, use the built-in methods of the Scanner, Console, or BufferedReader class or provide the input via the Command-Line args.
How to Reverse a String in Java?
To reverse a string in Java, built-in classes and methods along with custom logic or data structures like stack and deque, etc, are used in this guide.
How to Import a Scanner Class in Java?
To import the Java Scanner class, use “import java.util.Scanner;”, import java.util.*” or a Scanner class object creation in this guide.
How to Clear Console/Screen in Java?
To clear the console, screen, or terminal in Java, use different ANSI escape codes and methods. They clear the console/screen in Java.
How to Flatten a List of Lists in Java
To flatten a list of lists in Java, you can use methods like flatMap(), forEach(), reduce(), collect(), forEach loop, Guava Library, or Eclipse Collection.
How to Call a Java Method From Another Class?
To call a non-static method from another class, first, create the class instance in the other class, then call it depending upon its access modifier.
How to Add Days to a Date in Java
To add days to a date in Java, use the built-in classes like Calendar, LocalDate, Instant, or the DateUtils class of the Apache Commons Library.
List of Lists in Java: How to Create, Iterate, and Access it
A list containing some other lists as its elements is known as a List of Lists. To create a list of lists in Java, use Arrays.asList(), add(), or Stream.of().