Write a program to print your name in java

This tutorial provides any beginner with the basic skills required to start programming in Java.

Write a program to print your name in java

Throwing exceptions Taking Input from the User In the addition program that we have written, we have initialised the variables firstNumber and secondNumber with 3 and 4. Wouldn't it be better if you could ask your friend to enter his own values and then display the sum of those two numbers?

There are several ways to do it in Java. But here, we shall look at one simple way by using the Scanner class. You may not be able to understand every line of code that we would be writing here but still at the end, you will know how you can take different types of input- integers, real numbers, Strings from the user just like the way you are now capable of writing simple programs like displaying 'Hello World!

Things would become clearer as we proceed to other topics. For now, we shall look at the Scanner class. As already said, Java has a number of predefined classes which we can use.

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These classes are just like the HelloWorld and Addition classes that we have written but they do not contain a main method. Instead, they have some variables, constructors and some different methods. With the help of constructors, we instantiate create objects from these classes. We can create as many objects as we want from a single class and each of them have their own set of instance variables.

And, we call the methods of these objects to perform tasks. These predefined classes are organised in the form of packages.

For now, you can think of a package as a simple collection of classes. Before we can use the class, we need to either import the entire package or the class. We import the Scanner class using the following line. Scanner; The import statement should be the first line in our program.

And then as usual we write the code for our class or program, similar to what we have done earlier. Now, we need to write some code in the main method to perform the intended task. Before we write the code, let us look at how information can be passed from the keyboard to our program using the Scanner class.

Information flows as a stream just like the way water flows through a hose. The System class which we have used contains two pre-defined streams. One is the output stream out which is connected the console.

We have used it in our earlier programs to print information on the screen.

write a program to print your name in java

The other stream is the input stream in which is by default connected to the keyboard. We need to obtain the stream and convert the information in that stream into meaningful data like integers and Strings.

The input stream object in is accessed by the statement System.

write a program to print your name in java

We now use this in object to create a Scanner object. As we have already said, to create an object from a class, we use the constructor of that class.

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The constructor just like methods may require arguments. Remember that when we have used the print or println methods, we have passed String arguments like 'HelloWorld'. A Scanner constructor requires an input stream object as an argument. Therefore we pass the in object to the Scanner constructor and create a Scanner object named s in the following way.By Santhanam L.

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Jul 31,  · How to Use Java to Display Letters with Asterisks This article will show you how to write a program to display the asterisk pattern of any alphabet in Java.

There's no logical ashio-midori.com: 16K. C++ program to accept three digits and print all possible combinations from these digits C++ programme to record a score of a cricket match. One array stores information of batting team such as batman's name, runs score,etc.

At the end of this tutorial, you should be able to create a basic Java program that requests input from a user, does something with the information and displays the results.

In this tutorial, we will be making a program that requests the user’s name, the year she/he was born and the current year. Java Program to find the length of the string in Java Programming, you have to ask to the user to enter the string and then find the length of that string using the method length() and display the length value of the string on the output screen as shown in the following program.

Java program to print alphabets on screen, i.e., a, b, c, , z; in lower case. Java programs; conio.h; math.h; Programming books; Java programming source codes.

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