java - 计算连续数字

Question

我目前陷入如何计算用户输入的连续数字的困境。我正在尝试执行 a=lastvariable 但 lastvariable 仍为 0。我了解变量范围，但如何更改 a=lastvariable？

<小时/>

import java.util.Scanner;

public class Test {
    public static void main(String[]args){

        Scanner scan = new Scanner(System.in);

        System.out.print("Give a positive #: ");
        int input = scan.nextInt();
        int consecutive= 0;
        int lastvariable=0;


        while(input>0){
            System.out.print("Give a positive #: ");
            int a = scan.nextInt();
            if(a==lastvariable)
                 consecutive++;
            if (a<0)
                input = 0;
            a = lastvariable;
        }
        System.out.println("Consecutive #'s: " + consecutive);
    }

Answer 1

以这种方式更改 while 循环。你犯了一个小错误，没有设置lastvariable。

while(input>0){ System.out.print("Give a positive #: "); int a = scan.nextInt(); if(a==lastvariable) consecutive++; if (a<0) input = 0; lastvariable = a; //small correction here }