Why it is giving compile time error

help
1

I have written the code for the CodeChef: Practical coding for everyone problem but it is giving me error as
execption in main thread java.util.NosuchExeption Exception in thread “main” java.util.NoSuchElementException
at java.util.Scanner.throwFor(Scanner.java:862)
at java.util.Scanner.next(Scanner.java:1485)
at java.util.Scanner.nextInt(Scanner.java:2117)
at java.util.Scanner.nextInt(Scanner.java:2076)
at Codechef.main(Main.java:13)

my code is like this
import java.util.Scanner;
import java.lang.;
import java.io.;

/* Name of the class has to be “Main” only if the class is public. */
class Codechef
{
public static void main (String[] args)
{
Scanner sc= new Scanner(System.in);
int tcases= sc.nextInt();
for(int m=1; m<=tcases; m++)
{

		// TODO Auto-generated method stub
		int length=sc.nextInt();;
		int a[] = new int[length];
		
		for(int j=0; j<length-1; j++) 
			a[j] = sc.nextInt();
	
		String s1="";
		for(int i=0; i<length-1; i++) 
		{
			int first=a[i];
			int last=a[i+1];
			int count=0;
			while(i<length && a[i]+1==a[i+1]) 
			{
				count++;
				last=a[i+1];
				i++;
			}
			if(count>=2) 
				s1=s1.concat(first+"..."+last+",");
		
			else 
				s1=s1.concat(first+","+last+",");
		
		
		}
		String s2= s1.substring(0,s1.length()-1);
		System.out.println(s2);
	}
	sc.close();
}

}

2

Please either format your code or (better!) link to your submission - the forum software has mangled it and it won’t compile! :slight_smile:

That’s a runtime error, not a compile-time one - are you trying to “Run” without providing Custom Input?.

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