How to read input numbers in java

Getting method: 1. Create a Scanner object to read the user's input; 2. Get the integer number entered by the user by calling the nextInt() method; 3. Output the obtained number.

#Getting input numbers in Java usually requires using an input stream (Scanner class) to read the user's input. The following is a sample code to get the input number:

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        // 创建 Scanner 对象用于读取用户输入
        Scanner scanner = new Scanner(System.in);
        // 提示用户输入数字
        System.out.print("请输入一个数字：");
        // 读取用户输入的数字
        int number = scanner.nextInt();
        // 输出用户输入的数字
        System.out.println("您输入的数字是：" + number);
        // 关闭 Scanner 对象
        scanner.close();
    }
}

In the above code, we first create a Scanner object to read the user's input. Then, get the integer number entered by the user by calling the nextInt() method. Finally, we output the obtained numbers. In actual applications, exception handling needs to be performed as needed to ensure the stability and robustness of the program.

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