[英]Exception in thread “main” java.lang.NullPointerException [java]
I have task to do and I have problem with one point and I'm getting error. 我有任务要做,我有一点问题,而且我遇到了错误。 I havve no idea how to repair it:
我不知道如何修复它:
Exception in thread "main" java.lang.NullPointerException at test.main(test.java:29)
test.main(test.java:29)处的线程“ main”中的异常java.lang.NullPointerException
Here's my code: 这是我的代码:
import java.util.Scanner;
public class test
{
static int size;
static String[] productDescription;
public static void readProductsData()
{
Scanner data = new Scanner(System.in);
System.out.print("Array size: ");
size = data.nextInt();
String[] productDescription = new String[size];
for(int i = 0; i < size; i++)
{
System.out.print("Product name: ");
productDescription[i] = data.next();
}
for(int i = 0; i < size; i++)
System.out.println(productDescription[i]);
}
public static void main(String[] args)
{
readProductsData();
System.out.println(productDescription[0]);
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.