Working fine on Eclipse but not on CD IDE

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

Scanner sc = new Scanner(System.in);
	int n = sc.nextInt();

	int[] a = new int[n];

	for (int i = 0; i < n; i++) {

		a[i] = sc.nextInt();
	}

	int mkk = sc.nextInt();

	while(mkk>0) {
		int bs = sc.nextInt();
		int f =LowerBound(a, bs);
		int h = Upperbound(a,bs);
		
		
		System.out.print(f+" "+h);
		System.out.println();
		mkk--;
	}

}

public static int LowerBound(int[] a, int m) {

	int lo = 0;
	int hi = a.length - 1;
	int res = -1;

	if(m>a[hi]) {
		return -1;
	}
	while (lo <= hi) {

		
		
		int mid = lo + hi / 2;

		if (a[mid] == m) {
			res = mid;
			hi = mid - 1;

		}

		else if (m<a[mid]) {
			hi = mid-1;

		}else {
			lo = mid+1;
		}

	}
	return res;

}	



public static int Upperbound(int[]a, int m1) {
	
	int lo = 0;
	int hi = a.length - 1;
	int res = -1;
	
	if(m1>a[hi]) {
		return -1;
	}

	while (lo <= hi) {
		
		int mid = (lo + hi) / 2;

		if (a[mid] == m1) {
			res = mid;
			lo = mid + 1;

		}

		else if (m1<a[mid]) {
			hi = mid-1;

		}else {
			lo = mid+1;
		}

	}
	
	return res;
	
}

}

What error are you getting ?