![]() ![]() The result of expression inside of the condition can be a boolean only. So, what do we do with the data? We perform some operations on it! Operationsįor example, based on whether the driver is regular or not, we can give him some incentives or, based on the amount of petrol he fills, we can know how many kilometers he drives. For example, int has Integer boolean has Boolean, and so on. The data types char, int, float, boolean and double are called primitive types, and Java has corresponding objects for each of these. The limit of using a variable is defined by its scope, which can be local, static, or global. The advantage of storing data in variables is that we can use the variable anywhere in the code. Same way, since a boolean data type returns true or false, it is a good practice to name the variables starting with is, are, has, etc.… etc…) like the above and methods should start with a small case, and the following word begins with a capital letter – driver Name. One of the best practices in Java is to follow the right naming conventions. Java handles a lot of data types – String driverName Same way, the price of petrol that he puts in your vehicle is a floating-point (decimal). For example, the telephone number of your car driver is an integer, but his name is a string (array of characters). On a day to day basis, we come across different types of data. Now that we have a positive mindset and zing to learn let us look at all the concepts we need to learn to write efficient code in Java – Variables and data types ![]() Read this article and follow the approach of starting with a simple program and then adding functionality over it to make it more complicated and interactive.So, focus on the core functionality but know the syntax well too. The IDE takes care of all your syntax errors.If you are stuck, the Java community is significant and active and will help you. There are plenty of resources available to learn Java.It is possible to build full-fledged web applications using Java and J2EE. For example, if you want to buy groceries from Big Basket, what is the checkout process? Same way, how would you do it? If you think of a design/flow, you will surely find a way to implement it and get results. Think about a real-world scenario and list down how you would implement it.If you are a non-programmer, have some extra patience – you will undoubtedly get there.Never start with the mindset of “How hard is it to learn Java.” Still think it must be secure, that is why so many people are doing it.Okay, before we get into the core concepts, here are a few things you should remember always –
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