prime number program in java
// The following method returns a boolean indicating
// if the parameter is a prime number
private boolean isPrimeNaiveIter(int val) {
if(val == 0 || val == 1)
return false;
if(val == 2)
return true;
// Look for a divisor other than 1 and val
for(int div = 2; div*div <= val; div++) {
// if found return false
if(val % div==0)
return false;
}
// No divisors found => return it is a prime number
return true;
}prime numbers program in java
public class PrimeExample{
public static void main(String args[]){
int i,m=0,flag=0;
int n=3;//it is the number to be checked
m=n/2;
if(n==0||n==1) System.out.println(n+" is not prime number");
else{
for(i=2;i<=m;i++) if(n%i==0) {
System.out.println(n+" is not prime number");
flag=1;
break;
}
if(flag==0) System.out.println(n+" is prime number");
}//end of else
}
}Copyright © 2021 Codeinu
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