50 faq

Question 1- Write a program to check the given number is prime or not?

import java.util.*; class PrimeTest {                 public static void main(String args[])                 {                                 System.out.print("Enter The Number: ");                                 Scanner sc=new Scanner(System.in);                                 int number=sc.nextInt();                                                                                                 boolean flag=true;                                                 for(int i=2;i<=number/2;i++)                                 {                                                 if(number%i==0)                                                 {                                                                 flag=false;                                                                 break;                                                 }                                 }                                 if(flag)                                 {                                                 System.out.println("Prime Numner");                                 }                                 else                                 {                                                 System.out.println("Not Prime Numner");                                                         }                 } }

Question 2- Write a program to find HCF of given two numbers?

//This Java program accepts 2 numbers from the user and prints their HCF. import java.util.*; class hcf {     public static void main(String Args[])     {         System.out.println("Enter 2 numbers");         Scanner sc=new Scanner(System.in);         int m=sc.nextInt();         int n=sc.nextInt();         int h=1;         int p=m*n;         for(int i=2;i<p;i++)         {             if((m%i==0)&&(n%i==0))             {                 h=i;             }         }         System.out.println("HCF="+h);     } }