在哪里正确地放置待办事项声明?

时间:2016-09-13 15:38:01

标签: java if-statement while-loop do-while

我刚开始编程不久前,我真的很想学习更多。现在,我正在创建一个小的“if-else”,“while-do”场景,用户将使用正确的整数来回答问题。我遇到了麻烦,每当我点击这段代码时都会遇到麻烦:

if (chopperCrash > 100) {   


        System.out.println("That's not possible!");

        System.out.println("Hurry and re-enter a new value before we crash!");
        continue;

它不断循环打印的文本。有人可以帮我解决这个具体的项目,并向我详细解释“if-else”和“while-do”语句的正确位置吗?感谢您的任何帮助。我很抱歉,如果这已经得到回答,我太过密集,无法理解其他先前提出的问题。这是我的完整代码块:

import java.util.Scanner;

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

    System.out.println("The chopper is going down because your lack of experience.");

    System.out.println("How much throttle are you going to give it?");

    System.out.println("(enter a number between 1 and 100)");

    Scanner FirstScan = new Scanner(System.in);


    int number = FirstScan.nextInt();
    int chopperCrash = number;

    while (true){       

    if (chopperCrash >= 60 && chopperCrash <= 100){

        System.out.println("Looks like we'll make it another day!");
        break;
    }

        else{       

    if (chopperCrash > 100) {   


        System.out.println("That's not possible!");

        System.out.println("Hurry and re-enter a new value before we crash!");
        continue;
    }
    else{
    if (chopperCrash <= 59) {
        System.out.println("Not enough throttle!");
        System.out.println("We're going down!");

        break;
             }
           }
         }
      }
   }
}

1 个答案:

答案 0 :(得分:1)

您将输入代码留在循环中:

int number = FirstScan.nextInt();
int chopperCrash = number;

while (true) {

由于你从未在循环中分配chopperCrash,因此它会永远持续下去。所以,把它放进去就好了:

while (true) {
    int number = FirstScan.nextInt();
    int chopperCrash = number;