如何用Java输入一个句子

Question

我写的代码只是输入一个字符串,而不是整个句子,我想把整个句子作为输入:

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"欢迎使用Java",它只是在输出中显示"欢迎".其他一切都很好.请帮忙.

Answer 1

你可以scan.nextLine();用来读取整行.

Answer 2

您可以尝试以下方法，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);
  }