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# Even no or Prime no?????

Posted By: Falak Khan     Category: Java     Views: 11471

## Code for Even no or Prime no????? in Java

``` */
package filespaths;
import java.nio.file.*;
//import java.nio.file.Paths;
import java.io.*;

import java.util.*;
/** * * @author Hira */publicclass Filespaths {

/**     * @param args the command line arguments     */publicstaticvoid main(String[] args) {

System.out.println("Enter a no");
Scanner in=new Scanner(System.in);
int num=in.nextInt();
myclass obj=new myclass();
System.out.println("Enter 1 to check even/odd");
System.out.println("Enter 2 to check Prime/not Prime");
System.out.println("Enter 3 to find Factorial. ");
int n=in.nextInt();
switch(n){
case 1:
boolean e=obj.isEven(num);
if(e)
System.out.println(num+" is Even ");
else
System.out.println(num+" is Odd ");
break;
case 2:
boolean r=obj.isPrime(num);
if(r)
System.out.println(num+" is Prime ");
else
System.out.println(num+" is No Prime ");
break;
case 3:
int y= myclass.fact(num);
System.out.println(y);
break;
default:
System.exit(0);
}

}

}
class myclass{
public  boolean isEven(int num){
boolean iseven;
if(num%2==0)
iseven=true;
else
iseven=false;
return iseven;
}
public  boolean isPrime(int num){
boolean p=true;
if(num==2||num==3||num==1)
p=true;
elsefor(int i=2;i<num;i++)
{
if(num%i==0){
p=false;
break;
}
}
return p;
}
publicstaticint fact(int num){
int facto=1;
for(int i=num;i>=1;i--){
facto=facto*i;
}
return facto;
}
}```
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 Falak Khan author of Even no or Prime no????? is from Pakistan. View All Articles

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