Questions tagged as 'java'

Tagged questions
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java.lang.ArrayIndexOutOfBoundsException: 0 when using split () in java [duplicate]

On the occasion of rounding a number up or down according to decimals, I created a small method in java. The problem that I find is that just the line after applying split() returns the error java.lang.ArrayIndexOutOfBoundsException:...
asked by 03.12.2017 / 02:11
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fragment on android

Hi, I am using fragment in android and the problem is that from a button that has an activity it calls a fragment but the views of the activity overlap in the fragment this is the activity and when I pulse in the floatingbutton it ca...
asked by 02.12.2017 / 19:19
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Find parts that are equal of 2 Strings in java

I would like to know if there is any way to compare 2 Strings in Java in such a way that they search not if they are equal, but if they do have equal parts and concatenate them without repeating the common parts. Example: Dice Strings as:...
asked by 05.12.2017 / 23:15
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error with edittext android java

Hello, I want to print by a message toast what I entered in an edit text. <EditText android:id="@+id/idprodtxxt" style="@style/Widget.AppCompat.EditText" android:layout_width="wrap_content" android:layout_height="wrap_co...
asked by 04.12.2017 / 02:34
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Configure ViewResolver with Spring4

Good morning everyone. I am developing an application with Spring4 and Maven in Java. And I want to add an option to export the data of a table to an excel sheet, using Apache POI. The problem is that I do not recognize well the mapping...
asked by 15.11.2017 / 12:45
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error when running window in android app in versions less than 7

I have problem executing window in application with android less than 7 I can not find the error or incompatibility I leave the logcat code FATAL EXCEPTION: main j...
asked by 14.11.2017 / 23:25
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How to resize an image in a JPanel?

Good morning friends, is my first question on this website, I would like you to help me a little with this code ... This is the code I am using, it returns the image with the initial dimensions of the jpanel; what I want is that by maximizing...
asked by 11.11.2017 / 18:10
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how to read a structured file with java

I am trying to read a file with the following structure: a{a,a,a,a,a,a,a,a,a,a,a,a},b{a,a,a,,a,a,a,a,a,a,a},c[c,c,c,c,c,,,,c,c,c,c] I tried to do it with regular expressions and with split but nothing I could not achieve. Can someone help m...
asked by 17.12.2017 / 19:07
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Wait for retrofit to answer a call?

I have to do a Retrofit Call inside an adapter to compare information from two arraylist: public void checkguardadas(int id_usuario) { RetrofitService retrofitService = RetrofitService.getInstance(); PabloAPI api = retrofitService.get...
asked by 30.11.2017 / 11:31
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Web services c # + java

I am trying to use a web service created in c # from visual java. I'm trying to use them, but I get the following error:    incompatible when trying to convert from int to string type private void jButton1ActionPerformed(java.awt.event.Act...
asked by 29.11.2017 / 05:26