Seven Java Calculator

import java.util.Scanner;

class SevenBasicCalculator {
 public static void main ( String args[]){
     Scanner bucky = new Scanner ( System.in);
     Scanner bucky1 = new Scanner ( System.in);
     double fnum, snum, answer ;
     String operation;
    
     System.out.println("Enter First Number");
     fnum = bucky.nextDouble();
   
     System.out.println("For Addition put + ");
     System.out.println("For Substraction put - ");
     System.out.println("For Multiplication put * ");
     System.out.println("For Division put / ");
     System.out.println("For Remainder put %");
       

     operation = bucky1.nextLine()             ;
    
     System.out.println("Enter Second Number");
     snum = bucky.nextDouble();
   
     if ( operation.equals("+" )){
    
     answer = fnum + snum;
     System.out.println("Answer of Addition fnum and snum is :=  "  + answer);
   
     }
     else if
   
     (operation.equals("-" )){
     answer = fnum - snum;
     System.out.println("Answer of Substraction fnum and snum is := " + answer);   
     }
     else if(operation.equals("*" )){
     answer = fnum * snum;
     System.out.println("Answer of Multiplication fnum and snum is := " + answer);   
     }
     else if(operation.equals("/" )){
   
     answer = fnum / snum;
     System.out.println("Answer of Divison fnum and snum is := " + answer);   
     }
     else if (operation.equals("%" )){
     answer = fnum % snum;
     System.out.println("Answer of Remainder fnum and snum is := " + answer);   
     }
     else
     {
         System.out.println("Please put valid operator Sign i.e +,-,*,/,% ");     }
   
   
 }

   
}

==============
Out put
Enter First Number
1
Put Opration
For Addition put +
For Substraction put -
For Multiplication put *
For Division put /
For Remainder put %
+
Enter Second Number
9
Answer of Addition fnum and snum is :=10.0