How to Take Integer Input from User in Java using BufferedReader

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Summary: Learn how to read integer input from the user in Java using BufferedReader. This guide provides examples and explanations to help you understand the process.
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When it comes to taking user input in Java, using BufferedReader is a common approach as it provides efficient ways to read input from the user. To take an integer input from the user using BufferedReader in Java, you can follow these steps:

Import Necessary Libraries
Firstly, you need to import the required libraries to use BufferedReader and InputStreamReader. Include the following import statements at the beginning of your Java program:

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Create BufferedReader Object

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Prompt the User

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Read and Parse Integer Input
Read the input as a string using the readLine() method of the BufferedReader object. Then, parse the input string to an integer using the parseInt() method of the Integer class.

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In the above code snippet, readLine() reads the input as a string, and parseInt() converts the string to an integer. The code is wrapped in a try-catch block to handle potential IOException (when reading input) and NumberFormatException (when parsing the string to an integer). If the user enters a non-integer value, a suitable error message is displayed.

Example Program
Here's a complete example program that demonstrates how to take an integer input from the user using BufferedReader in Java:

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In this example, the program prompts the user to enter an integer, reads the input, and displays the entered integer back to the user. If the user enters a non-integer value, it catches the exception and displays an error message.

Now you know how to take integer input from the user in Java using BufferedReader. Feel free to incorporate this approach into your Java programs to interactively get integer input from users.