if else and switch case

import java.util.Scanner;
import java.lang.*;

class condition{

public static void main(String args[]){
char c;
Scanner in=new Scanner(System.in);
System.out.println("Please enter a positive negaive or zero");
c=in.next().charAt(0);

if(c=='+'){
System.out.println("This is positive character");
}
        else{
        switch(c){
        case '-':
        System.out.println("This is negative character");
        break;
        default:
        System.out.println("404 invalid input");
        }
         } 
   }
}