java - Syntax Error - Navigating Pages -

i appear getting syntax error when try build application. trying navigate 1 page appear getting 6 syntax errors. please have assistance going wrong!

package com.techblogon.loginexample;  import android.app.activity; import android.content.intent; import android.os.bundle; import android.view.view; import android.widget.button;   public class mainmenu extends activity {      protected void oncreate(bundle setinstancestate) {         super.oncreate(setinstancestate);          setcontentview(r.layout.activity_main_menu);          final button button = (button) findviewbyid(r.id.btnhealth);         button.setonclicklistener(new view.onclicklistener() {             public void onclick(view v) {                   intent activitychangeintent = new intent(mainmenu.this, tips.class);                    mainmenu.this.startactivity(activitychangeintent);             }         });     } }