Anees Asghar

To sort an array in ascending order in Java, use the sort() method or sorting algorithms, like bubble, selection, quick, etc.

To convert a date to a “dd/MM/yyyy” format in Java, use the “SimpleDateFormat()” constructor or the “ofPattern()” method of the “DateTimeFormatter” class.

To capitalize the first letter of a string in Java, use the “substring().toUpperCase()”, “Matcher.replaceFirst()”, or “StringUtils.capitalize()” method

To get the current year in Java, you can use different built-in classes as well as third-party libraries, such as Calendar, Year, CalendarUtils, Joda Time, etc.

To calculate percentage in Java, you can use the standard percentage formula (i.e., percentage = (parts/whole) * 100) or BigDecimal class.

To find the square root of a number in Java, use the methods like “sqrt()”, “pow()”, “binary search algorithm”, or “brute force”.

To convert a Set to a List in Java, you can use different methods, such as “List.addAll()”, “List Constructor”, “Java 8 Stream API”, “copyOf()”, etc.

To check the Java version on Windows, Linux, or Mac operating systems, run the “java –version” command from the respective terminal.