java - 使用单个扫描仪对象扫描多行

Question

我是 Java 的新手，所以如果这对您来说听起来绝对愚蠢，请不要打分

好的，我如何使用单个扫描仪对象输入这个

5

hello how do you do

welcome to my world

6 7

给那些建议的人

scannerobj.nextInt->nextLine->nextLine->nextInt->nextInt,,,

检查一下，它不起作用!!!

谢谢

Answer 1

public static void main(String[] args) {
    Scanner  in    = new Scanner(System.in);

    System.out.printf("Please specify how many lines you want to enter: ");        
    String[] input = new String[in.nextInt()];
    in.nextLine(); //consuming the <enter> from input above

    for (int i = 0; i < input.length; i++) {
        input[i] = in.nextLine();
    }

    System.out.printf("\nYour input:\n");
    for (String s : input) {
        System.out.println(s);
    }
}

示例执行:

Please specify how many lines you want to enter: 3
Line1
Line2
Line3

Your input:
Line1
Line2
Line3