Tutorial by Examples: ti

Incorrect code Sub DoSomething() On Error GoTo CleanFail DoSomethingElse CleanFail: Debug.Print Err.Number Resume Next End Sub Why doesn't this work? If the DoSomethingElse procedure raises an error, execution jumps to the CleanFail line label, prints the error number, a...

To restrict the characters that can be typed into an entry widget, only numbers for instance, a validate command can be added to the entry. A validate command is a function that return True if the change is accepted, False otherwise. This function will be called each time the content of the entry is...

Detailed instructions on getting jq set up or installed. Install on Mac Using brew: $ brew install jq Then test: $ echo '{"name": "john"}' {"name": "john"} $ echo '{"name": "john"}' | jq '.' { "name": "john&quo...

The creators of Swift have put a lot of attention into making the language expressive and error handling is exactly that, expressive. If you try to invoke a function that can throw an error, the function call needs to be preceded by the try keyword. The try keyword isn't magical. All it does, is mak...

The connection between the widget and the scrollbar goes both ways. The scrollbar needs to be expanded vertically so that it has the same height as the widget. text = tk.Text(parent) text.pack(side="left") scroll_y = tk.Scrollbar(parent, orient="vertical", command=text.yview...

The principle is essentially the same as for the Text widget, but a Grid layout is used to put the scrollbars around the widget. canvas = tk.Canvas(parent, width=150, height=150) canvas.create_oval(10, 10, 20, 20, fill="red") canvas.create_oval(200, 200, 220, 220, fill="blue")...

Ubuntu: $ cat /proc/cpuinfo Sample Output: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping : 11 cpu MHz : 1596.000 cache size : 4096 KB physical id : 0 siblings ...

Follow following steps to try out a sample application on AWS ECS service as a proof of concept. Login to AWS management console and go to AWS service catalog - > Compute - > Ec2 Create a VM(EC2 instance) using amazon linux 64 bit OS, this we will use to configure docker, git, AWS ECS agen...

In this example, one of two different ImageViews should be translated from the ChooserFragment to the DetailFragment. In the ChooserFragment layout we need the unique transitionName attributes: <ImageView android:id="@+id/image_first" android:layout_width="wrap_content...

Source Link Open the Terminal and write the following commands. 1-Update and upgrade package your system ubuntu: sudo su sudo apt-get -y update sudo apt-get -y upgrade sudo apt-get -y dist-upgrade sudo apt-get -y autoremove 2-Installing Dependenices: sudo apt-get install libopencv...

From the tool-bar open the Java Perspective. Create a new Java project Right-click into the Package Explorer, and from the menu select New -> Java Project In the upcoming dialog enter a project name, then click Finish. Now you have the new project in your workspace. Create a new Java ...

Sub TransposeRangeValues() Dim TmpArray() As Variant, FromRange as Range, ToRange as Range set FromRange = Sheets("Sheet1").Range("a1:a12") 'Worksheets(1).Range("a1:p1") set ToRange = ThisWorkbook.Sheets("Sheet1").Range("a1")...

The simple way to implement multi-threaded applications is to use Java's built-in synchronization and locking primitives; e.g. the synchronized keyword. The following example shows how we might use synchronized to accumulate counts. public class Counters { private final int[] counters; ...

Open Visual Studio and Select File -> New Project Select AWS Lambda Project with Tests (.NET Core) Next the Select Blueprint screen will display. Select Empty Function and Click the Finish button: Go to Tools -> NuGet Package Manager -> Package Manager Console. In the console win...

Right Click your project and select Publish to AWS Lambda... The Upload to AWS Lambda screen will appear. Make sure the correct region is selected. Keep all of the defaults. Then only enter the Function Name: AWSLambdaFunctionAgeInYears and then click next. On the next page, sele...

After Step 3 above, Visual Studio will open the View Function window with your function loaded. On the bottom left of this screen, enter the following json into the Sample Input box: { "month": "10", "day": "28", "year": "1979" } ...

Instances of Integer_IO have a settings variable Default_Width which the number of characters that each output number will take. with Ada.Text_IO; use Ada.Text_IO; procedure Print_Integer is subtype Count is Integer range -1_000_000 .. 1_000_000; package Count_IO is new Integer_IO ...

A settings variable Default_Base is set on the instance of Ada.Text_IO.Integer_IO; also, Default_Width is set so that output cannot have leading space. with Ada.Text_IO; use Ada.Text_IO; procedure Print_Hex is subtype Count is Integer range -1_000_000 .. 1_000_000; package Count_IO...

Combine the instances of the _IO packages, use the right one with its numeric type. with Ada.Text_IO; use Ada.Text_IO; procedure Print_Inventory is type Fruit is (Banana, Orange, Pear); subtype Count is Integer range -1_000_000 .. 1_000_000; package Fruit_IO is new Enumeration...

Install the toolchain with curl https://sh.rustup.rs -sSf | sh You should have the latest stable version of rust already. You can check that by typing rustc --version If you want to update, just run rustup update