Tutorial by Examples: o

Basic foreground images can be inserted into an email document just like they are for web pages: <img src="http://www.yourserver.com/email/images/logo.png"> And they can be made links by wrapping them in an <a href> tag: <a href="http://www.yourwebsite.com"&gt...
To indent our outdent the current line in normal mode press the greater than > key or the less than < twice accordingly. To do the same on multiple lines just add a number beforehand 6>> CommandDescription>>indent current line<<outdent current line6>>indent next 6 lin...
Comparator cmp = [ compare:{ a, b -> a <=> b } ] as Comparator def col = [ 'aa', 'aa', 'nn', '00' ] SortedSet sorted = new TreeSet( cmp ) sorted.addAll col assert '[00, aa, nn]' == sorted.toString()
Here is a very simple example of a function that "promises to proceed when a given time elapses". It does that by creating a new Deferred object, that is resolved later and returning the Deferred's promise: function waitPromise(milliseconds){ // Create a new Deferred object using th...
Detailed instructions on getting arcgis set up or installed.
Correlated (also known as Synchronized or Coordinated) Subqueries are nested queries that make references to the current row of their outer query: SELECT EmployeeId FROM Employee AS eOuter WHERE Salary > ( SELECT AVG(Salary) FROM Employee eInner WHERE eInner.Dep...
my @letters = ( 'a' .. 'z' ); # English ascii-bet print $letters[ rand @letters ] for 1 .. 5; # prints 5 letters at random How it works rand EXPR expects a scalar value, so @letters is evaluated in scalar context An array in scalar context returns the number of elements it ...
The series of events here is supposed to work as follows: Compile code with -pg option Link code with -pg option Run program Program generates gmon.out file Run gprof program To add profiling flags, you must add to your CMakeLists.txt: SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pg&quot...
The example reads the first line from a file. It uses an instance of BufferedReader to read data from the file. BufferedReader is a resource that must be closed after the program is finished with it: static String readFirstLineFromFile(String path) throws IOException { try (BufferedReader br = n...
The following example shows other ways you can use the underscore in numeric literals: long creditCardNumber = 1234_5678_9012_3456L; long socialSecurityNumber = 999_99_9999L; float pi = 3.14_15F; long hexBytes = 0xFF_EC_DE_5E; long hexWords = 0xCAFE_BABE; long maxLong = 0x7fff_ffff_ffff_ffffL;...
You can use Map<String, List<String>> myMap = new HashMap<>(); instead of Map<String, List<String>> myMap = new HashMap<String, List<String>>(); However, you can't use List<String> list = new ArrayList<>(); list.add("A"); ...
Detailed instructions on getting caching set up or installed.
If you are using Windows open Git Bash. If you are using Mac or Linux open your Terminal. Before you generate an SSH key, you can check to see if you have any existing SSH keys. List the contents of your ~/.ssh directory: $ ls -al ~/.ssh # Lists all the files in your ~/.ssh directory Check...
// Takes a callback and executes it with the read value def readFile(path: String)(callback: Try[String] => Unit): Unit = ??? readFile(path) { _.flatMap { file1 => readFile(path2) { _.foreach { file2 => processFiles(file1, file2) }} }} The function argument to readFile is...
If shift is called outside of a delimiting reset block, it can be used to create functions that themselves create continuations inside a reset block. It is important to note that shift's type is not just (((A => B) => C) => A), it is actually (((A => B) => C) => (A @cpsParam[B, C])...
We can have three cases to analyze an algorithm: Worst Case Average Case Best Case #include <stdio.h> // Linearly search x in arr[]. If x is present then return the index, // otherwise return -1 int search(int arr[], int n, int x) { int i; for (i=0; i<n; i...
Not everything in a bindings library will have the same name in C# as it does in Java. In C#, interface names start with "I", but Java has no such convention. When you import a Java library, an interface named SomeInterface will become ISomeInterface. Similarly, Java doesn't have propert...
In order to create a workspace, one should run the following in the terminal: $ mkdir -p ~/workspace_name/src $ cd ~/workspace_name/src $ catkin_init_workspace $ cd ~/workspace_name/ $ catkin_make The previous commands creates a workspace named workspace_name. Once a workspace has been creat...
Assuming a workspace named workspace_name has been previously created in the home directory, a package named package_name can be created by executing the following command lines. $ cd ~/workspace_name/src/ $ catkin_create_pkg package_name rospy
The if statement is a conditional statement that allows a program to enter or not a specific section of code depending if the condition(s) of the statement are met or not. It can be found in mostly all the existing programming languages. The if statement will usually take the following shape: if(s...

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