java - Android share a combined string -

i have button action calls share intent. construct string strings.xml

below have strings:

<string name="app_name">nowicons</string> <string name="market">market://details?id=com.nmiltner.nowicon</string>

my string constructor here:

    public string share = "check out " + getresources().getstring(r.string.app_name) + getresources().getstring(r.string.market); 

by button click here:

        btn_share.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view view) {             // launching share intent             intent sendintent = new intent();             sendintent.setaction(intent.action_send);             sendintent.putextra(intent.extra_text, share);             sendintent.settype("text/plain");             startactivity(sendintent);           }     }); 

when test app, force close, , error log has null pointer exception.

i using similar method send user play store rate app.

public string marketurl = getresources().getstring(r.string.market);          btn_rate.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view view) {             // go market listing              uri uri1 = uri.parse(marketurl);             startactivity(new intent(intent.action_view, uri1));          }     }); 

fixed!!!

edit:

i able work out, here fix:

    public string marketurl;  public string share;          btn_rate.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view view) {             // go market listing             string marketurl = getresources().getstring(r.string.market);             uri uri1 = uri.parse(marketurl);             startactivity(new intent(intent.action_view, uri1));          }     });          btn_share.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view view) {             // launching share intent             string share = "check out " + getresources().getstring(r.string.app_name) + " " + getresources().getstring(r.string.market) + " on play store";             intent sendintent = new intent();             sendintent.setaction(intent.action_send);             sendintent.putextra(intent.extra_text, share);             sendintent.settype("text/plain");             startactivity(sendintent);          }     });