Android Studio - Fatal Exception

Question

ich zwischen 2 Aktivitäten in Android-Studio wechseln bin versucht, das Problem ist, wenn ich die Taste, um den Programmabsturz drücken und aufhören zu arbeiten, hier ist der Fehler:

> FATAL EXCEPTION: main 
                        Process: com.example.talal.furnitureorder, PID: 19310 
                        java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.talal.furnitureorder/com.example.talal.furnitureorder.Invoice}: java.lang.NumberFormatException: Invalid int: "Number of Chairs:" 
                         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) 
                         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                         at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                         at android.os.Handler.dispatchMessage(Handler.java:102) 
                         at android.os.Looper.loop(Looper.java:148) 
                         at android.app.ActivityThread.main(ActivityThread.java:5417) 
                         at java.lang.reflect.Method.invoke(Native Method) 
                         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                        Caused by: java.lang.NumberFormatException: Invalid int: "Number of Chairs:" 
                         at java.lang.Integer.invalidInt(Integer.java:138) 
                         at java.lang.Integer.parse(Integer.java:410) 
                         at java.lang.Integer.parseInt(Integer.java:367) 
                         at java.lang.Integer.parseInt(Integer.java:334) 
                         at com.example.talal.furnitureorder.Invoice.onCreate(Invoice.java:48) 
                         at android.app.Activity.performCreate(Activity.java:6237) 
                         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
                         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
                         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                         at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                         at android.os.Handler.dispatchMessage(Handler.java:102) 
                         at android.os.Looper.loop(Looper.java:148) 
                         at android.app.ActivityThread.main(ActivityThread.java:5417) 
                         at java.lang.reflect.Method.invoke(Native Method) 
                         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

mein XML-Code für Aktivität 1:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context="com.example.talal.furnitureorder.Order"> 

    <LinearLayout 
     android:orientation="vertical" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:text="Customer Name" 
      android:id="@+id/textView" 
      android:textAlignment="center" /> 

     <EditText 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:inputType="textPersonName" 
      android:ems="10" 
      android:id="@+id/e1" 
      android:textAlignment="center" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:text="Customer Address" 
      android:id="@+id/textView2" 
      android:textAlignment="center" /> 

     <EditText 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:id="@+id/e2" 
      android:textAlignment="center" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:text="Customer City" 
      android:id="@+id/textView3" 
      android:textAlignment="center" /> 

     <EditText 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:id="@+id/e3" 
      android:textAlignment="center" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:text="Number of Chairs ordered" 
      android:id="@+id/textView4" 
      android:textAlignment="center" /> 

     <EditText 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:id="@+id/e4" 
      android:textAlignment="center" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:text="Number of Sofas ordered" 
      android:id="@+id/textView5" 
      android:textAlignment="center" /> 

     <EditText 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:id="@+id/e5" 
      android:textAlignment="center" /> 

     <Button 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:text="Print the Invoice" 
      android:id="@+id/b1" 
      android:textAlignment="center" 
      android:onClick="print" 
      android:layout_marginTop="10pt" /> 

     <Button 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:text="Reset" 
      android:id="@+id/b2" 
      android:onClick="reset" 
      android:textAlignment="center" /> 

    </LinearLayout> 

</RelativeLayout> 

mein Java-Code für Aktivität 1:

package com.example.talal.furnitureorder; 

    import android.content.Intent; 
    import android.support.v7.app.AppCompatActivity; 
    import android.os.Bundle; 
    import android.view.View; 
    import android.widget.EditText; 

    public class Order extends AppCompatActivity { 

    private EditText ed1,ed2,ed3,ed4,ed5; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_order); 

    } 

    public void print (View view){ 

     Intent t=new Intent (this,Invoice.class); 
     ed1=(EditText) findViewById(R.id.e1); 
     ed2=(EditText) findViewById(R.id.e2); 
     ed3=(EditText) findViewById(R.id.e3); 
     ed4=(EditText) findViewById(R.id.e4); 
     ed5=(EditText) findViewById(R.id.e5); 

     Bundle b=new Bundle(); 

     b.putString("name",ed1.getText().toString()); 
     b.putString("address",ed2.getText().toString()); 
     b.putString("city",ed3.getText().toString()); 
     b.putString("C_NO",ed4.getText().toString()); 
     b.putString("S_NO",ed5.getText().toString()); 




     t.putExtras(b); 
     startActivity(t); 

    } 

    } 

meine XML-Code für activ ity2:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context="com.example.talal.furnitureorder.Invoice"> 

    <LinearLayout 
     android:orientation="vertical" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv1" 
      android:textAlignment="center" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv2" 
      android:textAlignment="center" 
      android:layout_marginTop="18dp" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv3" 
      android:textAlignment="center" 
      android:layout_marginTop="18dp" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv4" 
      android:textAlignment="center" 
      android:layout_marginTop="18dp" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv5" 
      android:textAlignment="center" 
      android:layout_marginTop="18dp" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv6" 
      android:textAlignment="center" 
      android:layout_marginTop="18dp" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv7" 
      android:textAlignment="center" 
      android:layout_marginTop="18dp" /> 

     <TextView 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textAppearance="?android:attr/textAppearanceLarge" 
      android:id="@+id/tv8" 
      android:textAlignment="center" 
      android:layout_marginTop="18dp" /> 

     <Button 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:text="New" 
      android:id="@+id/b3" 
      android:textAlignment="center" 
      android:layout_marginTop="19dp" /> 

     <Button 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:text="Exit" 
      android:id="@+id/b4" 
      android:textAlignment="center" 
      android:layout_marginTop="10dp" /> 
    </LinearLayout> 

</RelativeLayout> 

mein Java-Code für activity2:

package com.example.talal.furnitureorder; 

    import android.support.v7.app.AppCompatActivity; 
    import android.os.Bundle; 
    import android.view.View; 
    import android.widget.TextView; 

    public class Invoice extends AppCompatActivity { 

    private TextView t1, t2, t3, t4, t5, t6, t7, t8; 
    int c, s; 
    int p, tp; 
    int tx; 


    @Override 

    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_invoice); 




     t1 = (TextView) findViewById(R.id.tv1); 
     t2 = (TextView) findViewById(R.id.tv2); 
     t3 = (TextView) findViewById(R.id.tv3); 
     t4 = (TextView) findViewById(R.id.tv4); 
     t5 = (TextView) findViewById(R.id.tv5); 
     t6 = (TextView) findViewById(R.id.tv6); 
     t7 = (TextView) findViewById(R.id.tv7); 
     t8 = (TextView) findViewById(R.id.tv8); 

     Bundle bb = getIntent().getExtras(); 

     String s1 = bb.getString("name"); 
     String s2 = bb.getString("address"); 
     String s3 = bb.getString("city"); 
     String s4 = bb.getString("C_NO"); 
     String s5 = bb.getString("S_NO"); 

     t1.setText("Customer Name:" + s1); 
     t2.setText("Customer Address:" + s2); 
     t3.setText("Customer City:" + s3); 
     t4.setText("Number of Chairs:" + s4); 
     t5.setText("Number of Sofas:" + s5); 

     c = Integer.parseInt(t4.getText().toString()); 
     s = Integer.parseInt(t5.getText().toString()); 

     p = (350 * c) + (925 * s); 

     t6.setText("Price is: $" + p); 


    } 



    } 

Answer 1

TextView t4 enthält den Text Number of Chairs:, die nicht eine ganze Zahl ist zu halten. So wirft es NumberFormatException.

Wenn Sie versuchen, Anzahl der Stühle von Order Aktivität abgerufen zu analysieren, versuchen Sie den Code aus

c = Integer.parseInt(t4.getText().toString()); 
s = Integer.parseInt(t5.getText().toString()); 

zu

c = Integer.parseInt(s4); 
s = Integer.parseInt(s5); 

Und da Ihre ändern versuchen, Daten aus EditText abgerufen zu analysieren, Ich würde vorschlagen, Sie verwenden try catch block dh

try{ 
    c = Integer.parseInt(s4); 
    s = Integer.parseInt(s5); 
}catch(NumberFormatException ex){ // handle your exception 
    ... 
} 

UPDATE

um 0 bei senden EditText ist leer

Order.java

String c_no = ed4.getText().toString(); 
String s_np = ed5.getText().toString(); 
b.putString("C_NO",TextUtils.isEmpty(c_no)? 0 : c_no); 
b.putString("S_NO",TextUtils.isEmpty(s_np)? 0 : s_np); 

Answer 2

c = Integer.parseInt(t4.getText().toString()); 

Der Inhalt Ihrer Textview ist mehr als nur eine Nummer, auf diese Weise Sie es nicht analysieren kann zu eine ganze Zahl, daher stürzt es ab.

Answer 3

Ich bin mir nicht sicher, warum Sie dies tun, aber das Problem ist in Activity2 hier:

t4.setText("Number of Chairs:" + s4); 
    t5.setText("Number of Sofas:" + s5); 

    c = Integer.parseInt(t4.getText().toString()); 
    s = Integer.parseInt(t5.getText().toString()); 

Du t4 zu einem String mit dem Wert „Anzahl der Stühle:“ Einstellung und dann zu versuchen, den gleichen Wert herauszuziehen und parse es zu einem Integer - das wird nicht passieren.

nicht sicher, was Sie versuchen zu tun, aber es ist wahrscheinlich, dass Sie zwei Felder benötigen - ein, um die String und eine die Integer

Answer 4

Ihr Problem ist hier:

c = Integer.parseInt(t4.getText().toString()); 

Sie können keine Zeichenfolge „Anzahl der Stühle analysieren: 4 "fe und erhalten Integer.Versuchen Sie stattdessen:

c = Integer.parseInt(s4); 

Das ist Ihre EditText-Eingabe nur erlaubt Nummern zur Verfügung gestellt. Gleiches für Sofas übrigens.

Edit: Ich kann sehen, wie ich die Antwort eingegeben wurde oben für Sie bereitgestellt wurde.