ble tag

96 questions

1 answers
88 views
0

How do I change a string to a double type?

if((e.getSource() == jBook)) { String name = jlbName.getText(); String date = jlbDateProduce.getText(); String time = jr1.getText(); int number = (Integer.parseInt(jtfNoOfTicket.getText().trim())); St...

string java double

2 years ago

1 answers
105 views
0

I have a question for Android Serializable.

I'd like to ask you a question about Serializable Intent.If you serialize the data class of ArrayList and simply send putExtra, the receiving side will receive itDo I just have to do getSerializableEx...

serializable android arraylist intent

2 years ago

1 answers
141 views
0

I would like to ask you a question about analyzing the example code that implements the Dijkstra algorithm in Python. (Help me!!!))

graph = {}graph[start] = {}graph[start][a] = 6graph[start][b] = 2graph[a] = {fin: 1} # graph[a][fin] = 1graph[b] = {a: 3, fin: 5} # graph[b][a] = 3 graph[b][fin] = 5graph[fin] = {}# Hash table that st...

python dijkstra algorithm graph table

2 years ago

1 answers
124 views
0

JavaReferences and strings

The reference variable that stores the class's address value is System.out.print(), which shows the address value at the time of output.The reference variable referring to the string class is System.o...

java reference-variable reference string string-literals

2 years ago

1 answers
107 views
0

How do I change Drawable to Bitmap?

I want to use the device wallpaper as Drawable, but when I looked at the wallpaper function, it only works as Bitmap.So I can't use Wallpaper Manager, so can I change Drawable to Bitmap?

android bitmap wallpaper drawable

2 years ago

1 answers
136 views
0

I'd like to put a link to the text view

<TextView android:layout_width=wrap_content android:layout_height=wrap_content android:text=@string/txtCredits android:autoLink=web android:id=@+id/infoTxtCredits android:layout_centerInParent=true...

android android-textview clickable hyperlink

2 years ago

2 answers
126 views
0

How about setting the display:table when arranging block elements in a row?

I recently learned a trick to align the li elements inside the ul in a row.Among them, I know how to do it by saying display:table; in ul and giving table-cell in li.Does this also work as a table? Do...

fast-frontend html table css

2 years ago

1 answers
112 views
0

Why do you put an asterisk before the name, not after the type, when declaring the C pointer?

Why do you put an asterisk before the name, not after the type, when declaring the C pointer?It's usually declaredint* myVariable; instead of int *myVariable;Why do you put an asterisk in front of you...

c naming-convention pointer variable

2 years ago

1 answers
81 views
0

I would like to ask you about the use of a dongle when scanning BLE in Windows with C#

I am developing a BLE app for Windows with C# When scanning or connecting via BLE API Is the implementation method different between Windows' own Bluetooth receiver (surfice or laptop) and external re...

c# ble windows bluetooth

2 years ago

1 answers
124 views
0

I changed only one element in the list, but the whole element changed. Why is that?

[[1, 1, 1, 1, 1], [1, 1, 1, 1], [1, 1, 1]] I wrote it like this. myList = [[1] * 4] * 3I changed only one value at the beginning, but the whole value of the element changed.myList[0][0] = 5 #[5, 1, 1,...

list python nested-list mutable

2 years ago

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