Program to Prime numbers between a given range of numbers in JAVA using square root function

import java.util.Scanner;

public class test {

    public static void main(String args[]){
        Scanner s = new Scanner(System.in);
        System.out.println("Enter the lower range");
        int m = s.nextInt();
        System.out.println("Enter the higher range");
        int n= s.nextInt();
        int t=0,i;
        for (i=m;i<=n;i++)
        {
            for(int j=2;j<=Math.sqrt(i);j++)
            {
                if(i%j==0) {
                    t=0;   
                    break;
                }
                else                    

                t=1;
            }
            if(t==1)
                System.out.println(i);

        }
        
    }

}