Java输入语句的方法

Question

我编写的代码仅将一个字符串而不是整个句子作为输入，我希望将整个句子作为输入：

 import java.util.Scanner;

public class Solution {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int i;
        i= scan.nextInt();
        double d;
        d=scan.nextDouble();
        String s;
        s=scan.next();
        System.out.println("String: " + s);
        System.out.println("Double: " + d);
        System.out.println("Int: " + i);
    }
}

测试用例是“Welcome to Java”，它只是在输出中显示“Welcome”。其他一切工作正常。请帮忙。

原文由 Sarthak Rana 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

您可以使用 scan.nextLine(); 来阅读整行。

原文由 guru_001 发布，翻译遵循 CC BY-SA 3.0 许可协议

Answer 2

您可以尝试以下操作，它会起作用。

 public static void main(String args[]) {
        // Create a new scanner object
        Scanner scan = new Scanner(System.in);

        // Scan the integer which is in the first line of the input
        int i = scan.nextInt();

        // Scan the double which is on the second line
        double d = scan.nextDouble();

        /*
         * At this point, the scanner is still on the second line at the end
         * of the double, so we need to move the scanner to the next line
         * scans to the end of the previous line which contains the double.
         */
        scan.nextLine();

        // reads the complete next line which contains the string sentence
        String s = scan.nextLine();

        System.out.println("String: " + s);
        System.out.println("Double: " + d);
        System.out.println("Int: " + i);
  }

原文由 Arafat 发布，翻译遵循 CC BY-SA 4.0 许可协议