Java Tutorials


Remove All Special Character from String in Java

In Java, to remove all special character form a given string, we can use the replaceAll(String regex, String replacement) method […] Continue reading »

Java 8 Predicate vs Function: A Comparison with Examples

Java 8 introduced several new features to enhance the language’s functional programming capabilities. Among these features are Predicates and Functions, […] Continue reading »

HashSet vs TreeSet in Java

HashSet vs TreeSet in Java- A Comparison of Set Implementations: The Set interface provides an unordered collection of unique elements […] Continue reading »

Difference between ArrayList and Vector in Java

ArrayList and Vector are two commonly used classes in Java that provide dynamic arrays. They are similar in many ways […] Continue reading »

Java- Return the Squares of a Sorted Array in Sorted Order

In this Java exercise, you have an integer array sorted in non-decreasing order, and you must return an array of […] Continue reading »

Java- Convert a Degree to Clock Time

Write a Java program to convert a degree to the clock time with hour: minute format. Assume if… Degree 0 […] Continue reading »

How to schedule a Task in Java

In Java to run/execute a task periodically or at some interval, we can use the TimerTask class from its java.util […] Continue reading »

Java- Print all duplicate elements from a List

In Java, we have multiple ways to find duplicate elements in a List. We can loop through the List and […] Continue reading »

Find second index of a substring in a String in Java

In Java, we can use the overloaded method indexOf(String str, int fromIndex) of the String class to get the second […] Continue reading »

Java- Count number of pairs in the Array whose sum is zero

This Java example will help to solve a given scenario. Scenario: Write down a Java program that calculates the number […] Continue reading »

Difference between trim() and strip() methods in Java

In this article, you will learn the difference between trim() and strip() methods of the String class in Java. trim() […] Continue reading »

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