java - 从用户获取的输入总是少于 1

Question

我正在尝试从用户那里获取 n 行输入(字符串)

• 首先设置 n
• 我初始化一个字符串数组来保存输入，并初始化 for 循环来保存它们。

问题是它总是达不到意义

• 如果 n=1 则程序终止
• 如果 n=2，则仅需要 1 个输入
• 如果 n=3，则仅需要 2 个输入，依此类推......

出了什么问题？

Scanner sc = new Scanner(System.in);
//how many lines should be taken
int lines = sc.nextInt(); 
// initialize input array
String[] longWords = new String[lines] ;

//set the input from the user into the array
for (int i = 0; i < longWords.length; i++) {
    longWords[i] = sc.nextLine() ;
}

Answer 1

这样做:

Scanner sc = new Scanner(System.in);
//how many lines should be taken
int lines = sc.nextInt(); 

//read the carret! This is, the line break entered by user when presses Enter
sc.nextLine();

// initialize input array
String[] longWords = new String[lines] ;

//set the input from the user into the array
for (int i = 0; i < longWords.length; i++) {
    longWords[i] = sc.nextLine() ;
}