java - 如何使用 Scanner 类读取一行中空格分隔的字符串？

Question

这个问题已经有答案了:

Scanner is skipping nextLine() after using next() or nextFoo()? (25 个回答)

已关闭 3 年前。

 Scanner sc = new Scanner(System.in);
 int t = sc.nextInt();
 String s = sc.nextLine();
 String[] arr = s.split(" ");  
 //not able to split the string by whitespace" ".

Answer 1

nextLine 这里首先读取该行的其余部分 according to the docs ，因此您需要再次调用 nextLine。

Scanner sc = new Scanner(System.in);
int t = sc.nextInt();
sc.nextLine(); // added
String s = sc.nextLine();
String[] arr = s.split(" ");