greatest of three in java
import java.util.*;
class Main
{
public static void main(String[] aa){
Scanner sc=new Scanner(System.in);
int n1,n2,n3;
n1=sc.nextInt();
n2=sc.nextInt();
n3=sc.nextInt();
System.out.println(n1>n2 ?(n1>n3?n1:n3): (n2>n3 ? n2 : n3));
}
}