Groovy example of storing values in different data variables

class Datatypes {
    public void integer(){
        def integer=10;
        println integer;
    }
    public void decimal(){
        def decimal=10.67f;
        println decimal;
    }
    public void string(){
        def string="0";
        println string;
    }
    public void character(){
        def character='a';
        println character;
    }
    public static void main(args){
        Datatypes dt=new Datatypes();
        dt.integer();
        dt.decimal();
        dt.string();
        dt.character();
    }
}