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PONegative value in edittext
 

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  1. PONegative value in edittext
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    <p>conversion is other class, I'm working in <code>MainActivity</code>;</p> <p>when i clear edittext and then enter "-" then it generates error, but when i enter some value and then at first position of edittext then it does not generate error, plz help m attaching my error log with it. </p> <pre><code>Conversion conversion; conversion = new Conversion(); @Override public void onTextChanged(CharSequence s, int start, int before, int count) { if(edittext.length()!=0){ String Result =conversion.temp(spinner1.getSelectedItemPosition(), spinner2.getSelectedItemPosition(),edittext.getText().toString()); textView.setText(Result); } } </code></pre> <p>This is my function</p> <pre><code>public String temp(int ddfrom,int ddto,String edittextvalue) { float s; float inputValue = Float.parseFloat(edittextvalue); s = rate*inputValue; return String.valueOf(s); } </code></pre> <blockquote> <pre><code> 02-04 12:56:33.029: E/AndroidRuntime(317): Uncaught handler: thread main exiting due to uncaught exception 02-04 12:56:33.119: E/AndroidRuntime(317): java.lang.NumberFormatException: - 02-04 12:56:33.119: E/AndroidRuntime(317): at org.apache.harmony.luni.util.FloatingPointParser.initialParse(FloatingPointParser.java:149) 02-04 12:56:33.119: E/AndroidRuntime(317): at org.apache.harmony.luni.util.FloatingPointParser.parseFloat(FloatingPointParser.java:319) 02-04 12:56:33.119: E/AndroidRuntime(317): at java.lang.Float.parseFloat(Float.java:288) 02-04 12:56:33.119: E/AndroidRuntime(317): at com.sample.unitconverter.Conversion.timee(Conversion.java:651) 02-04 12:56:33.119: E/AndroidRuntime(317): at com.sample.unitconverter.UnitConverter$6.onTextChanged(UnitConverter.java:397) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.widget.TextView.sendOnTextChanged(TextView.java:6131) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.widget.TextView.handleTextChanged(TextView.java:6172) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:6316) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.text.SpannableStringBuilder.sendTextChange(SpannableStringBuilder.java:889) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.text.SpannableStringBuilder.change(SpannableStringBuilder.java:352) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.text.SpannableStringBuilder.change(SpannableStringBuilder.java:269) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:432) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:409) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:28) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:578) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.view.inputmethod.BaseInputConnection.commitText(BaseInputConnection.java:174) 02-04 12:56:33.119: E/AndroidRuntime(317): at com.android.internal.widget.EditableInputConnection.commitText(EditableInputConnection.java:120) 02-04 12:56:33.119: E/AndroidRuntime(317): at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:231) 02-04 12:56:33.119: E/AndroidRuntime(317): at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:57) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.os.Handler.dispatchMessage(Handler.java:99) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.os.Looper.loop(Looper.java:123) 02-04 12:56:33.119: E/AndroidRuntime(317): at android.app.ActivityThread.main(ActivityThread.java:4363) 02-04 12:56:33.119: E/AndroidRuntime(317): at java.lang.reflect.Method.invokeNative(Native Method) 02-04 12:56:33.119: E/AndroidRuntime(317): at java.lang.reflect.Method.invoke(Method.java:521) 02-04 12:56:33.119: E/AndroidRuntime(317): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 02-04 12:56:33.119: E/AndroidRuntime(317): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 02-04 12:56:33.119: E/AndroidRuntime(317): at dalvik.system.NativeStart.main(Native Method) </code></pre> </blockquote>
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    1. COHow did you define EditText in your layout?
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      1. USthelawnmowerman
    2. COYou can either ignore exception by catching it or check if text is not "-" then parse it.
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      1. USNikita Beloglazov
 

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