Scientech Easy welcomes you in the Java tutorial category. We have designed this tutorial series for beginners, students, and professional developers who want to learn Java programming from basic to advanced levels. Here, you will find easy-to-understand Java tutorials, practical example programs, interview questions, and quizzes.
So, let’s start to understand Java concepts one by one with these tutorials.
NavigableMap in Java is an interface that is a subinterface of SortedMap interface. It extends SortedMap interface to handle the retrieval of entries based on the closet match to a given key or keys. NavigableMap interface was added by Java…
A class that wraps a primitive data type into an object is called wrapper class in Java. In simple words, wrapper class provides a mechanism to convert primitive data type value into an object and vice-versa. For example, wrapping int…
Calendar class in Java is an abstract super class that is designed to support different kinds of calendar systems. It is used to know system data and time information. Java Calendar class provides some specific functionality that is common to…
StringTokenizer in Java is a utility class that breaks a string into pieces or multiple strings called “tokens”. For example, strings separated by space and tab characters are tokens. These tokens are separated with the help of a delimiter. A…
Comparator in Java is an interface whose task is to compare objects of a user-defined class when the class does not implement the Comparable interface. In other words, Java Comparator is used when: Objects to be ordered do not have…
