Anees Asghar

To create a method, specify the access modifier, return type, and a valid name. To call a method in Java, specify method name followed by parenthesis and a semicolon.

In Java, the StringUtils.isNumeric() accepts a string as a parameter and checks if the input string contains all Unicode digits. If yes, it retrieves true.

In Java, different methods like “brute force”, “retainAll()”, and “Sets.intersection()” are used to calculate the intersection of two sets.

To create a Rock Paper Scissors Game in Java, use the Scanner class to get the user’s move and the Random class to generate the computer’s move.

You can convert an array to a set in Java using different methods, such as “Arrays.asList()”, “Collections.addAll()”, “Set.of()” and Java 8 Stream API.

You can use built-in parse methods, Apache Commons Lang, and regular expressions, to check if a string is numeric in Java.

In Java, the lastIndexOf() of the String class retrieves the last occurrence (position) of the provided character or substring.

To split a string by whitespaces in Java, use the split() method on the provided string and specify the whitespace as a delimiter.