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Sunday, November 27, 2011

Menentukan Bilangan Prima dengan Modulus Via Java


import java.io.*;
public class Prima {
void prima (){
        DataInputStream dis = new DataInputStream(System.in);
        try
        {
        System.out.print("\nIsikan angka: ");
        int bil = Integer.parseInt(dis.readLine());
        int jum;
        int i;
        jum = 0;
     for (i = 1; i<=bil; i++)
        if (bil % i == 0)
         jum++;
      if (jum == 2)
        System.out.print(bil+" Adalah Bilangan Prima");
        else
           System.out.print(bil+" Bukanlah Bilangan Prima");
        }
                catch (Exception r)
        {
            System.out.println("Data tidak valid");
        }
}

    public static void main(String[] args) throws IOException{
String temp="";
Prima run=new Prima();
do
    {
run.prima();
System.out.print("\nApa kamu ingin mencobanya lagi (Y/N): ");
    BufferedReader d=new BufferedReader(new InputStreamReader(System.in));
    temp=d.readLine();
    }
    while(temp.equals("Y")||temp.equals("y"));
    }
//By Indra Dwi Permana W
}



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