primeinrange.java

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package javaapplication4;

/**
 *
 * @author rakshitmalhotra
 */
import java.util.*;
import java.lang.*;
import java.lang.Math;

public class JavaApplication4 {
//Program to check prime number
    public static void main(String args[])
    {

		int s1, s2, s3, flag = 0, i, j;
         Scanner s = new Scanner(System.in);
         System.out.println ("Enter the lower limit :"); 
         s1 = s.nextInt();
         System.out.println ("Enter the upper limit :"); 
         s2 = s.nextInt();
         System.out.println ("The prime numbers in between the entered limits are :");
         for(i = s1; i <= s2; i++)
         {
             for( j = 2; j < i; j++)
             {
                 if(i % j == 0)
                 {
                     flag = 0;
                     break;
                 }
                 else
                 {
                     flag = 1;
                 }
             }
             if(flag == 1)
             {
                 System.out.println(i);
             }
         }
	}
}