In Java, in addition to the StringBuilder object, we also have a StringBuffer object with the same functionality as the StringBuilder object, but in reality it is thread-safe. This means that only one thread can access our StringBuffer object at a time. Thread-safe ensures that… Read More
Check out the full series of Questions Management tutorial here. In the previous tutorial, we prepared all the necessary configurations to be able to construct API delete option such as an object containing all the information of an Option; a CoreOptionService interface with the implementation CoreOptionServiceImpl… Read More
Check out the full series of Questions Management tutorial here. In the previous tutorial, we prepared all the necessary configurations to be able to build API deletion option such as an Option document object containing the information of an option, an OptionRepository to manipulate MongoDB, an OptionController defines APIs for… Read More
In addition to the charAt(), indexOf(), substring(), length() methods that work in the String object, StringBuilder has other main methods that we’ll cover in the following: The append() method adds a value at the end of the current string of the StringBuilder object. We can… Read More
We often use the StringBuilder object to build String object whose content is aggregated from a variety of conditions. In this tutorial, I will summarize the knowledge needed to work with the StringBuilder object! Initialize the StringBuilder object StringBuilder gives us 4 constructors to initialize… Read More
Check out the full series of Questions Management tutorial here. To update an option in the Frontend of the Questions Management application, I will first need to add a new method in the OptionsService class that allows us to call the API update option of… Read More
The “+” and “+ =” operators that are mentioned here have some special aspects when used with String object in Java. In this tutorial, I would like to present you those aspects! First of all, I need to say that the “+” and “+ =”… Read More
Check out the full series of Questions Management tutorial here. In the previous tutorial, we prepared all the necessary configurations to be able to build API update option such as: an object containing all the information of an Option; a CoreOptionService interface with the implementation… Read More
I have shown you how to create an Image from a Container using the commit command in the Docker in the previous tutorial. This tutorial will guide you another way without using Container, which is to use a Dockerfile to create a new Image in… Read More
Check out the full series of Questions Management tutorial here. In the previous tutorial, we prepared all the necessary configurations to build API update option such as an Option document object containing the information of an option, an OptionRepository for manipulation with MongoDB, an OptionController defines… Read More
