Bechnung von Zahlen

class Berechnung{

public static void main (String args){
       int testberechnung1=0;
       testberechnung1=1+3;
       System.out.println(testberechnung1);
       
       double test2=1.822;
       System.out.println(test2);
       double test2a=test2+0.445;
       System.out.println(test2a);
       
       double test3=0.5;
       System.out.println(test3);
       double test3a=test3/100;
       System.out.println(test3a);

       double test4=6;
       System.out.println(test4);
       double test4a=test4/100;
       System.out.println(test4a);
       
       double test5=0.5/100;
       System.out.println(test5);
       double test5a=5/100;
       System.out.println(test5a);
}
}