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Manan Ayob
i dont no how to solve it pls
2 Answer(s)      4 years ago
Posted in : Java Interview Questions


Calculate and display the sum of all prime number from 1 to 100 covert in java system codes


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December 15, 2010 at 3:38 PM


Hi Friend,

Try the following code:

class PrimeNumbers{
public static void main (String args[]){
String primeNo = "";
int sum=0;
int j=0;
System.out.println("Prime nums are:" );
for (int i = 1; i < 100; i++){ {
for ( j = 2; j < i; j++){
if (i % j == 0) {
break;
}
}
if (i == j) {
primeNo += i + " ";
sum+=i;
}
}
}
System.out.println(primeNo);
System.out.println("Sum of Prime Numbers: "+sum);
}
}

Thanks



December 27, 2010 at 4:54 PM


Hi friend Try this code.......

import java.io.;
class today2
{
public static void main(String args[])throws IOException
{
BufferedReader obg=new BufferedReader(new InputStreamReader(System.in));
String str=obg.readLine();
int num=Integer.parseInt(str);
int sum=0;
//int  test=5;
       for(int i=2;i&lt;=num;i++)
                {
     if(num%i==0)
             {
      sum=sum+i;
              }
     }
System.out.println("Result"+sum);
}
}


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