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Java - "not"扫描仪问题

转载 作者:塔克拉玛干 更新时间:2023-11-03 06:02:41 25 4
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当我运行该程序时,它恰好通过了插入排序,但是当我使用二进制搜索询问您想在数组中搜索哪个数字时,该程序停滞不前,但它并没有终止或任何东西。我相信这与我的扫描仪有关。我已经使用单独的扫描器进行插入排序和二进制搜索解决了这个问题,但我不应该创建一个单独的扫描器来让它工作,对吧?

import java.util.Scanner;
public class Search {
public static void main(String [] args){

Insertion insert = new Insertion();
Scanner input = new Scanner(System.in);

int[] array = new int[5];

int low = 0, high = array.length - 1, mid = (low+high)/2;
int num =0;
int target = 0;

for(int i = 0; i < array.length; i++){
System.out.println("Enter a number: ");
num = input.nextInt();
array[i] = num;
}

insert.insertion_srt(array, array.length);

System.out.println("Your numbers sorted: ");

for(int a = 0; a < array.length; a++){
System.out.print(array[a]+" ");
}

System.out.println("\nWhich number do you want to look for?: ");
target = input.nextInt();

while(low<=high && array[mid] != target){
if(target > array[mid])
low = mid + 1;
else
high = mid -1;
}

if(low>high)
mid = -1;

System.out.println(mid);
input.close();

}

}

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