Core java

This tutorial provides the top 20 java projects for beginners for practice. These projects will help you to learn java quickly and efficiently.

Learn about how to convert Roman number to Integer in java.

Learn about how to declare String array in java.

In this article, we look at a problem : Given an Array of Positive Integers, Find the Maximum Difference between Two Adjacent Numbers. For each pair of elements we need to compute their difference and find the Maximum value of all the differences in array. Let us look at an example, Consider this array: For […]

In this article, we will look at a problem: Given an Input String and a Character, we have to Count Occurrences Of character in String in java. For Example, If the Given String is : "Java2Blog" and we have to count the occurrences of Character ‘a’ in the String. Therefore, Count of 'a' is : […]

Wherever you look, you face object-oriented programming languages. Well, many of the popular coding languages are object-oriented. The moment you decide to learn an object-oriented programming language, it might be quite overwhelming to pick the only one from this big pool of options. But don’t worry! Here you will find out which object-oriented programming languages […]

Ho In this post, we will see how to end program in java. You can use System.exit(0) to end program in java. Using System.exit() to end java program You can use exit() method of System class to end java program. System.exit() causes Java virtual machine to exit and terminate the current process. You can call […]

In this post, we will see how to escape double quotes in String in java. There are scenarios where you need to escape double quotes already present in the String. This generally happens while dealing with JSON file format or reading file data. Escape double quotes in java Double quotes characters can be escaped with […]

In this post, we will see how to convert Date to LocalDate in java. Sometimes, we may need to convert Date to new Java 8 APIs and vice versa. There are multiple ways to convert Date to LocalDate in java. Read also: Convert LocalDate to Date in java Using toInstant() method of Date class You […]