Java Scanner Input Tutorial

1 year ago
Olivia Parker
1 minute

To use the Scanner class to receive user input in Java, follow these steps:

  1. First, you need to import the java.util.Scanner class and add the following code at the beginning of the program:
import java.util.Scanner;
  1. You can create a Scanner object to instantiate the Scanner class using the following code:
Scanner input = new Scanner(System.in);
  1. The most commonly used method to obtain user input using the Scanner object is nextLine(), which reads a line of input entered by the user. For example:
System.out.print("请输入您的姓名：");
String name = input.nextLine();
System.out.println("您输入的姓名是：" + name);
  1. Finally, do not forget to close the Scanner object in order to release resources. You can use the following code:
input.close();

The above is the basic process of using the Scanner class to receive user input. Depending on specific needs, other methods of the Scanner class can be used to obtain different types of user input, such as nextInt(), nextDouble(), and so on.

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