prime numbers between 1 to 100 code code example
Example 1: prime numbers from 1 to 100
public class IsNumberIsSimple {
public static void main (String args[]) {
for ( int i=0; i < 100; i++) {
isNumberIsSimple(i);
}
}
public void isNumberIsSimple(num){
for ( int i=2; i < num; i++) {
if ( num%i == 0) {
return;
}
}
System.out.println("Very well! It's simple! " + num);
}
}
Example 2: Java program to display prime numbers from 1 to 100
public class PrimeNumbersFrom1To100
{
public static void main(String[] args)
{
int maxNumber = 100;
boolean prime = true;
String primeNumbers = "";
for(int a = 1; a <= maxNumber; a++)
{
prime = checkPrime(a);
if(prime)
{
primeNumbers = primeNumbers + a + " ";
}
}
System.out.println("Display prime numbers from 1 to " + maxNumber + ": ");
System.out.println(primeNumbers);
}
public static boolean checkPrime(int number)
{
int remainder;
for(int a = 2; a <= number / 2; a++)
{
remainder = number % a;
if(remainder == 0)
{
return false;
}
}
return true;
}
}
Example 3: primenumbers java
It will display the prime numbers between 1 and 100.
class PrimeNumbers
{
public static void main (String[] args)
{
int i =0;
int num =0;
String primeNumbers = "";
for (i = 1; i <= 100; i++)
{
int counter=0;
for(num =i; num>=1; num--)
{
if(i%num==0)
{
counter = counter + 1;
}
}
if (counter ==2)
{
primeNumbers = primeNumbers + i + " ";
}
}
System.out.println("Prime numbers from 1 to 100 are :");
System.out.println(primeNumbers);
}
}