Question

JAVA输出时把输出流的空格当做结束符号

输出hello teacher变成hello

import java.io.*;
import java.util.Scanner;
public class ex {
public static void main(String[] args) {
Scanner cin = new Scanner(System.in);
System.out.println("请输入");
String s = cin.next();
byte[] b = s.getBytes();
try {
FileOutputStream out = new FileOutputStream("ex.txt");
System.out.println("结果已打印");
out.write(b);
} catch (FileNotFoundException e) {

e.printStackTrace();
} catch (IOException e) {

e.printStackTrace();
}
}

}

Answer 1

把 String s = cin.next();

改成 String s = cin.nextLine();

Answer 2

这是Scanner的硬伤，没有办法，改用下面的输入流：
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
System.out.println("请输入");
String s = reader.readLine();