Error in a code.



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Error in a code.
1 Answer(s)      7 years ago
Posted in : Java Beginners
View Answers

November 23, 2009 at 10:38 AM

Hi Friend,

Try this:

import java.util.*;

class Prime{
public static void checkPrime(long num){
long i=0;
for ( i = 2; i < num; i++) {
long n = num % i;
if (n == 0) {
System.out.println("Entered number is not Prime!");
if (i == num) {
System.out.println("Number is Prime!");

public static void findFactors(long n){
System.out.print("The prime factorization of " + n + " is: ");
for (long i = 2; i <= n / i; i++) {
while (n % i == 0) {

n = n / i;
System.out.print(i + " ");
if (n > 1) System.out.println(n);
else System.out.println();

public static void main(String[] args) throws Exception {
Scanner scan = new Scanner(;
int menu = 0;
System.out.println("1. check prime or not");
System.out.println("2. prime factors");
System.out.println("3. Exit");

boolean quit = false;
System.out.print("Please enter your choice: ");
menu = scan.nextInt();

switch(menu) {
case 1:
System.out.print("Enter number: ");
long num=scan.nextLong();
case 2:
System.out.print("Enter number: ");
long num1=scan.nextLong();
case 3:
quit = true;
System.out.println("Invalid Entry!");
while (!quit);



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