Java Tutorials

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 »

Java – isBlank() vs isEmpty() method of String class

In this short article, you will get to know about the difference between the isBlank() and isEmpty() methods of the […] Continue reading »

Java 11- New Methods of String Class

Java 11 (JDK 11) added a few new utility methods in the String class. These utility methods will reduce the […] Continue reading »

Java 8 Stream filter() Method Example

filter() method introduced in the Stream interface of Java 8 version under the package filter() method is an Intermediate […] Continue reading »

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