如何使用Scanner读取包含空格的字符串输入并用Java打印出来？

Question

How can I accept the string as input in Java from the user by using the Scanner class that includes spaces and printing the accepted input with spaces?

Here is my code so far:

import java.util.Scanner;

public class Solution {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int i = scan.nextInt();
        double j=scan.nextDouble();
        String k=scan.next.split(' ');

        // Write your code here.

        System.out.println("String: " + k);
        System.out.println("Double: " + j);
        System.out.println("Int: " + i);
    }
}

This is a--input This is a--output

Answer 1

I don't quite understand what problem you are experiencing, but I advise you to read all strings like this:

String myString = scan.nextLine();

If you want to split it on every space, then just do it like this:

String[] mySplitString = myString.split(" ");

Note that the method above accepts a string variable and not a char variable. You have to store split strings into an array of strings (String[]), because the split method will generate one or multiple strings, depending on how many spaces there are in an input.

Answer 2

You can use nextLine() function of Scanner Class. Like this:-

Scanner s = new Scanner(System.in);
String str = s.nextLine();   //for getting input
System.out.print(str);  //for Printing

Hope this will help you.