java - receiving and returning methods -

-

i trying write simple program calls various methods prompts user city , state name , population gives percentage of population. i've gotten of code down keep getting 1 compiler error says

"error: cannot find symbol, variable: citypercstate"

can tell me whats wrong in code?

import java.util.scanner;  public class cityorozcob52  { // begin class   private static scanner input = new scanner(system.in);    public static void main(string[] args)    { // begin main method      string city, state;     float citypopulation, statepopulation;        cityname();     statename();     citypopulation(city);     statepopulation(state);     citypercstate(citypopulation, statepopulation);     displaycitystatestats(city, state, citypopulation, statepopulation, citypercstate);     } // end main method    public static string cityname()   {     string city = "";     system.out.printf("what name of city:");      city = input.nextline();       return city;   }    public static string statename()   {     string state = "";     system.out.printf("what name of state:");     state = input.nextline();      return state;   }    public static float citypopulation(string city)   {     float citypopulation = 0;     system.out.printf("what population of %s:\n", city);     citypopulation = input.nextfloat();      return citypopulation;    }   public static float statepopulation(string state)   {     float statepopulation = 0;     system.out.printf("what population of %s:", state);     statepopulation = input.nextfloat();      return statepopulation;   }    public static float citypercstate(float citypopulation, float statepopulation)   {    float citystatepercentage = (citypopulation / statepopulation) * 100;    }    public static void displaycitystatestats(string cityname, string statename, float citypopulation, float statepopulation,                                        float citypercstate)   {    system.out.printf("population statistics\n\n"                     + "city: %s"                     + "state: %s"                     + "city population: %f"                     + "state population: %f"                     + "city state population: %.2f%%", cityname, statename, citypopulation, statepopulation,                                                            citypercstate);    } } // ends cityorozcole52

you need return value in citypercstate() method.

so add:

return citystatepercentage;

to method.


Comments

Post a Comment

Popular posts from this blog

python - No exponential form of the z-axis in matplotlib-3D-plots -

-
Image
i have similar problem described in how prevent numbers being changed exponential form in python matplotlib figure : i don't want (in special case) weird scientific formatting of axis. problem different have problem @ z -axis. 2-d plots can use ax.get_yaxis().get_major_formatter().set_useoffset(false) . , there no function ax.get_zaxis() what use format z -axis same way? edit: example: from mpl_toolkits.mplot3d import axes3d import numpy np import sys import matplotlib import matplotlib.pyplot pyplot def func(xi, ti): res = 10e3 + np.cos(ti) * np.sin(xi) return res if __name__ == '__main__': timespacing = 20 timestart = 0 timeend = 1 time = np.linspace(timestart, timeend, timespacing) widthspacing = 50 widthstart = 0 widthend = 3 width = np.linspace(widthstart, widthend, widthspacing) reslist = [] matplotlib.rcparams['legend.fontsize'] = 10 fig = pyplot.figure() ax = fig.gca(projection = '3d...
Read more

php - Best Light server (Linux + Web server + Database) for Raspberry Pi -

-
i install web server database on raspberry pi (little computer). computer has 1gb ram. i want know best combination: linux distribution , web server , dbms run local server multiple users minimal latency, use php on server. , best settings performance , not have bugs (memory usage, disable plugin, disable service, etc)? i thought light debian , lighttpd server , sqlite database. solution? i think lighttpd + sqlite great choice. linux distro, debian @ centos or tiny core linux , although i'm not sure of compatibility pi. obviously, can't go wrong raspbian if want use in production , more stable performance, few more pi's , set them in cluster .
Read more

c# - "Newtonsoft.Json.JsonSerializationException unable to find constructor to use for types" error when deserializing class -

-
i developing app in xamarin android. have splash screen serialize class , pass mainactivity using intent . when try deserialize in mainactivity error message : "serializationexception unable find constructor use types" serialization : void loaddata() { currency currency = new currency(this); intent = new intent(this, typeof(mainactivity)); intent.putextra("currency", newtonsoft.json.jsonconvert.serializeobject(currency)); startactivity(intent); } deserialization : cur = newtonsoft.json.jsonconvert.deserializeobject<currency> (intent.getstringextra("currency")); // error here class constructor : public currency(context context) { thiscontext = context; } i began experiencing problem after added parameter context context constructor. has caused this? how can solve it? possible serialize/deserialize class has parameters? you need have empty constructor in currency class in order deserialize it. ...
Read more