java - Not working toast in if statment -


this question has answer here:

when tipping answer , hit check app crashes , toast in not shown. dhould fix problem??? tryed evreyhing deleting text putting in if statment. should fix it??? butaway quiz app , told before base of app wich answer checker not working propatly.

    @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);     }        public void thefirst() {         string answer1 = "david ben gurion";          edittext text = (edittext) findviewbyid(r.id.answer_no_1);         text.gettext().tostring();         if (text.equals(answer1)) {             context context = getapplicationcontext();             charsequence text1 = "right";             int duration = toast.length_short;              toast righttoast = toast.maketext(context, text1, duration);             righttoast.show();           }else {             context context = getapplicationcontext();             charsequence text2 = "try again";             int duration = toast.length_short;              toast wrongtoast = toast.maketext(context, text2, duration);             wrongtoast.show();          }     } }

xml: 

<?xml version="1.0" encoding="utf-8"?> <scrollview xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context="com.example.android.quizapp.mainactivity"      >      <linearlayout         android:layout_width="match_parent"         android:layout_height="match_parent"         android:orientation="vertical"         > <textview      android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:textsize="30dp"     android:layout_gravity="center"     android:text="the quiz"     android:layout_margin="16dp"     />         <textview             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="who first prime minister of israel"              android:layout_marginleft="17dp"             /> <edittext     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:layout_margin="16dp"     android:hint="answer"     android:id="@+id/answer_no_1"      />         <linearlayout             android:layout_width="wrap_content"             android:layout_height="wrap_content"> <button     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_marginleft="12dp"     android:text="show answer"      />              <button                 android:id="@+id/checkanswerbutton"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                  android:onclick="thefirst"                 android:text="check answer" />              <button                 android:id="@+id/button"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:layout_marginright="12dp"                  android:text="hint" />         </linearlayout>       </linearlayout> </scrollview>`

try this

public void thefirst(view v) {     string answer1 = "david ben gurion";      edittext text = (edittext) findviewbyid(r.id.answer_no_1);  if (text.gettext().tostring().equals(answer1)) {         context context = getapplicationcontext();         charsequence text1 = "right";         int duration = toast.length_short;          toast righttoast = toast.maketext(context, text1, duration);         righttoast.show();     }else {         context context = getapplicationcontext();         charsequence text2 = "try again";         int duration = toast.length_short;          toast wrongtoast = toast.maketext(context, text2, duration);         wrongtoast.show();      }  }  }

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