輸入超過4位數字後，程序崩潰後字符串格式

我已經構建了一個程序，需要一些號碼並用％打印。但是如果我輸入4位以上的數字，程序就會崩潰。輸入超過4位數字後，程序崩潰後字符串格式

public void onTextChanged(CharSequence s, int start, int before, int count) { 
    double currentBillTotal=0.0; 
    double temp=0.0; 
    if(s.length()>0){ 
    NumberFormat nf = NumberFormat.getInstance(); // get instance 
    nf.setMaximumFractionDigits(2); // set decimal places 

    currentBillTotal = Double.parseDouble(s.toString());      
    String st=nf.format(currentBillTotal); 
    currentBillTotal=Double.parseDouble(st); 

    temp=currentBillTotal*0.1; 
    st=nf.format(temp); 
    temp=Double.parseDouble(st); 
    tip10EditText.setText(st); 
    total10EditText.setText(currentBillTotal+temp+""); 

    temp=currentBillTotal*0.15; 
    st=nf.format(temp); 
    temp=Double.parseDouble(st);      
    tip15EditText.setText(st); 
    total15EditText.setText(currentBillTotal+temp+""); 

    temp=currentBillTotal*0.2; 
    st=nf.format(temp); 
    temp=Double.parseDouble(st); 
    tip20EditText.setText(st); 
    total20EditText.setText(currentBillTotal+temp+""); 

    }else{ 
    currentBillTotal = 0.0; 
    tip10EditText.setText((currentBillTotal*0.1)+""); 
    total10EditText.setText(currentBillTotal+(currentBillTotal*0.1)+""); 
    tip15EditText.setText((currentBillTotal*1.5)+""); 
    total15EditText.setText(currentBillTotal+(currentBillTotal*0.15)+""); 
    tip20EditText.setText(currentBillTotal*0.2+""); 
    total20EditText.setText(currentBillTotal+(currentBillTotal*0.2)+""); 
    }

的logcat-

FATAL EXCEPTION: main 
java.lang.NumberFormatException: Invalid double: "3,332" 
    at java.lang.StringToReal.invalidReal(StringToReal.java:63) 
    at java.lang.StringToReal.parseDouble(StringToReal.java:269) 
    at java.lang.Double.parseDouble(Double.java:295) 
    at com.example.homework24_11.MainActivity$1.onTextChanged(MainActivity.java:66) 
    at android.widget.TextView.sendOnTextChanged(TextView.java:7092) 
    at android.widget.TextView.handleTextChanged(TextView.java:7151) 
    at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:8794) 
    at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:962) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:496) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:435) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:30) 
    at android.text.method.NumberKeyListener.onKeyDown(NumberKeyListener.java:121) 
    at android.widget.TextView.doKeyDown(TextView.java:5246) 
    at android.widget.TextView.onKeyDown(TextView.java:5065) 
    at android.view.KeyEvent.dispatch(KeyEvent.java:2609) 
    at android.view.View.dispatchKeyEvent(View.java:7198) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1920) 
    at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1395) 
    at android.app.Activity.dispatchKeyEvent(Activity.java:2370) 
    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1847) 
    at android.view.ViewRootImpl.deliverKeyEventPostIme(ViewRootImpl.java:3701) 
    at android.view.ViewRootImpl.handleImeFinishedEvent(ViewRootImpl.java:3651) 
    at android.view.ViewRootImpl$ViewRootHandler.handleMessage(ViewRootImpl.java:2818) 
    at android.os.Handler.dispatchMessage(Handler.java:99) 
    at android.os.Looper.loop(Looper.java:137) 
    at android.app.ActivityThread.main(ActivityThread.java:5039) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:511) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
    at dalvik.system.NativeStart.main(Native Method) 
FATAL EXCEPTION: main 
java.lang.NumberFormatException: Invalid double: "1,111" 
    at java.lang.StringToReal.invalidReal(StringToReal.java:63) 
    at java.lang.StringToReal.parseDouble(StringToReal.java:269) 
    at java.lang.Double.parseDouble(Double.java:295) 
    at com.example.homework24_11.MainActivity$1.onTextChanged(MainActivity.java:66) 
    at android.widget.TextView.sendOnTextChanged(TextView.java:7092) 
    at android.widget.TextView.handleTextChanged(TextView.java:7151) 
    at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:8794) 
    at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:962) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:496) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:435) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:30) 
    at android.text.method.NumberKeyListener.onKeyDown(NumberKeyListener.java:121) 
    at android.widget.TextView.doKeyDown(TextView.java:5246) 
    at android.widget.TextView.onKeyDown(TextView.java:5065) 
    at android.view.KeyEvent.dispatch(KeyEvent.java:2609) 
    at android.view.View.dispatchKeyEvent(View.java:7198) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1920) 
    at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1395) 
    at android.app.Activity.dispatchKeyEvent(Activity.java:2370) 
    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1847) 
    at android.view.ViewRootImpl.deliverKeyEventPostIme(ViewRootImpl.java:3701) 
    at android.view.ViewRootImpl.handleImeFinishedEvent(ViewRootImpl.java:3651) 
    at android.view.ViewRootImpl$ViewRootHandler.handleMessage(ViewRootImpl.java:2818) 
    at android.os.Handler.dispatchMessage(Handler.java:99) 
    at android.os.Looper.loop(Looper.java:137) 
    at android.app.ActivityThread.main(ActivityThread.java:5039) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:511) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
    at dalvik.system.NativeStart.main(Native Method) 
FATAL EXCEPTION: main 
java.lang.NumberFormatException: Invalid double: "3,333" 
    at java.lang.StringToReal.invalidReal(StringToReal.java:63) 
    at java.lang.StringToReal.parseDouble(StringToReal.java:269) 
    at java.lang.Double.parseDouble(Double.java:295) 
    at com.example.homework24_11.MainActivity$1.onTextChanged(MainActivity.java:66) 
    at android.widget.TextView.sendOnTextChanged(TextView.java:7092) 
    at android.widget.TextView.handleTextChanged(TextView.java:7151) 
    at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:8794) 
    at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:962) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:496) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:435) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:30) 
    at android.text.method.NumberKeyListener.onKeyDown(NumberKeyListener.java:121) 
    at android.widget.TextView.doKeyDown(TextView.java:5246) 
    at android.widget.TextView.onKeyDown(TextView.java:5065) 
    at android.view.KeyEvent.dispatch(KeyEvent.java:2609) 
    at android.view.View.dispatchKeyEvent(View.java:7198) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1359) 
    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1920) 
    at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1395) 
    at android.app.Activity.dispatchKeyEvent(Activity.java:2370) 
    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1847) 
    at android.view.ViewRootImpl.deliverKeyEventPostIme(ViewRootImpl.java:3701) 
    at android.view.ViewRootImpl.handleImeFinishedEvent(ViewRootImpl.java:3651) 
    at android.view.ViewRootImpl$ViewRootHandler.handleMessage(ViewRootImpl.java:2818) 
    at android.os.Handler.dispatchMessage(Handler.java:99) 
    at android.os.Looper.loop(Looper.java:137) 
    at android.app.ActivityThread.main(ActivityThread.java:5039) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:511) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
    at dalvik.system.NativeStart.main(Native Method)

我怎樣才能解決這個問題？爲什麼程序在4位數後崩潰？少用它就可以。

來源

2013-11-26 Gili Yaniv

發佈崩潰的logcat。 – codeMagic

我添加它...我不知道如何使它可讀...大聲笑 –

'java.lang.NumberFormatException：無效的雙：「1,111」'這可能是因爲你使用了逗號。解析器可能不喜歡這個。 –

NumberFormat是一個本地化的類，而Double.parseDouble不是。因此，在你的情況下，因爲你的系統上的語言環境不是英語，還有另一種格式的使用，但Double.parseDouble期望英語。 2種方法來解決它：

使用NumberFormat nf = NumberFormat.getInstance(Locale.EN_US)創建您的數字格式 - 顯然不是你想要的。
使用nf.parse(st)解析。這解析本地化的字符串，應該更有用。

來源

2013-11-26 17:34:24

我發現了一個連擊方式來解決我的問題。

我寫這樣的代碼：

currentBillTotal = Double.parseDouble（s.toString（））;

   temp=currentBillTotal*0.1; 

       tip10EditText.setText(String.format("%.2f",temp)); 
       temp=currentBillTotal+temp; 

       total10EditText.setText(String.format("%.2f",temp));

中的String.format（「％2F」，溫度）沒有解決的點後超過2個位數的問題..

謝謝大家！

來源

2013-11-27 17:40:22

輸入超過4位數字後，程序崩潰後字符串格式

回答

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