首頁猿問為什么最小數(shù)輸不出來呀

為什么最小數(shù)輸不出來呀

Java

寒熙 2017-05-13 21:29:30

package com.imoocEx;import java.util.Scanner;public class scNum {?? ?public static void main(String[] args) {?? ??? ?// TODO Auto-generated method stub?? ??? ?Scanner input=new Scanner(System.in);?? ??? ?System.out.println("請輸入你想要的數(shù)組數(shù)量");?? ??? ?int nu=input.nextInt();???????? int[] num=new int[nu]; ????????? int minNum=num[0];?? ??? ? int maxNum=num[0];???????? double sum=0;???????? double avg=0;???????? for(int i=0;i<nu;i++){?? ??? ????? System.out.println("請輸入你想要的數(shù)");?? ??? ????? num[i]=input.nextInt();?? ??? ????? sum+=num[i];???????? }???????? System.out.println("和為："+sum);???????? for(int i=0;i<nu;i++){?? ??? ????? if(num[i]>maxNum){?? ??? ??? ??? ? maxNum=num[i];?? ??? ????? } ???????? }???????? System.out.println("最大的數(shù)"+maxNum);???????? for(int i=0;i<nu;i++){?????? ??? ? if(num[i]<minNum){?? ??? ??? ??? ? minNum=num[i];?? ??? ????? }???????? }??????? ????????? System.out.println("最小的數(shù)"+minNum);??????? ????????? avg=sum/nu;???????? System.out.println("平均數(shù)為："+avg);????? ??? ?}}

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1 回答

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TA貢獻(xiàn)1123條經(jīng)驗獲得超629個贊

因為你給minNum賦值的時候數(shù)組里面還沒有數(shù)，初始化是0，所以比的時候不會改變，如果你輸入的都是正書。調(diào)換一下代碼位置就行。

?????????double?sum=0;
?????????double?avg=0;
?????????for(int?i=0;i<nu;i++){
?????????????System.out.println("請輸入你想要的數(shù)");
?????????????num[i]=input.nextInt();
?????????????sum+=num[i];
?????????}
?????????int?minNum=num[0];
?????????int?maxNum=num[0];

反對回復(fù) 2017-05-14