import java.util.Scanner
时间: 2023-07-31 11:12:34 浏览: 33
这行代码是在Java中导入java.util包中的Scanner类。Scanner类是Java中常用的一个输入类,它可以从标准输入、文件、字符串等多种数据源中获取输入数据。在使用Scanner时需要先导入相关的包,以便能够使用Scanner类的相关功能。通过导入Scanner类,可以创建Scanner对象并使用其提供的方法来获取用户输入的数据或者读取文件中的数据等。
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import java.util.scanner
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import java.util.Scanner;
As an AI language model, I cannot perform input/output operations or run Java code. However, here is an example of how the Scanner class can be used in Java to read user input from the console:
```
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter your name: ");
String name = scanner.nextLine();
System.out.println("Hello, " + name + "!");
scanner.close();
}
}
```
In this example, we create a Scanner object to read input from the console using `System.in`. We then prompt the user to enter their name and read their input using the `nextLine()` method of the Scanner class. Finally, we print out a greeting using the user's name. Note that we close the Scanner object at the end to prevent resource leaks.