Anees Asghar

To format a string with printf() in Java, execute the “System.out.printf()” statement with the “%s” or “%S” format specifier.

In Java, you can sort a map by value using three methods: “Collections.sort()”, “Stream().sorted()”, and “Custom Comparators”.

To Use the StringUtils class in Java, add its corresponding Apache Commons dependency in a “pom.xml” file of your maven project.

The “String.replaceAll()” method is used to replace all occurrences of a specific character, word, or substring, with a new character, word, or substring.

To use the String substring() method in Java, follow the syntax “inputString.substring(int startIndex);” or “inputStr.substring(int startIndex, int endIndex);”.

In Java, the set contains() method accepts the target element as a parameter and is used with a dot syntax: “setName.contains(Object targetElement);”.

To get the current directory in Java, you can use the classes like “System”, “Paths”, “File”, “FileSystems” and “SystemUtils”.

Increment “++” is one of the unary operators in Java that increments the variable value by one. It is used either as a pre-increment “++i” or post-increment “i++”.