StringBuilder delete methods [closed]
I'd say this is fine. The intent is different. Lets try this for example: String builder sb = new StringBuilder(); sb.append("hello").append("hello"); sb.delete(0,5); sb.toString(); It prints "hello". Had you read the documentation, you'd see that the end is...
How to concatenate two different values from two different columns with comma ” , ” using TSQL?
if the datatype is numeric types(int,bigint, tinyint,smallint,etc) then you need to cast it to string before you concatenate. if the datatype is string(varchar,char,nvarchar,nchar) then you can directly use concat function select concat(cast(column_1 as...
How to get specific element from array of type any in swift?
You should not be using JSONSerializer in Swift. A better option is a JSONDecoder. JSONDecoder will allow you to establish and preserve the type information for the data you've decoded. Here is an Playground example of how you would use JSONDecoder to handle...
Error with resolution operator while referencing model type depending on dynamic variable (PHP 5.2)
I have found the answer here: http://php.net/manual/en/language.oop5.paamayim-nekudotayim.php The Scope Resolution Operator (also called Paamayim Nekudotayim) or in simpler terms, the double colon, is a token that allows access to static, constant, and...
How to make RecyclerView behave like Paragraph?
The answer is FlexBoxLayoutManager you can use it with RecyclerView put implementation 'com.google.android:flexbox:1.0.0' in your gradle file. Now setting up RecyclerView layout, <?xml version="1.0" encoding="utf-8"?> <RelativeLayout...
Piping commands after a piped xargs
You are almost there. In your last command, you can use -I to do the ls correctly -I replace-str Replace occurrences of replace-str in the initial-arguments with names read from standard input. Also, unquoted blanks do not terminate input items; instead the...
create arrow using css
Try to use Font awsome LINK HTML: <i class="fa fa-arrow-right"></i> fa-arrow-right Yes, there are several ways of doing this. 1. With an image First of all, in order to do what you've suggested, you can indeed use an image - but instead of coloring...
accessing values structure within structure? [closed]
Just create an object of emp1 inside your main, and give it a value like below and it should be ok emp1 emp; emp.number.number1=3; //printf then with emp.number.number1 😉 You are accessing the value "number1" like emp1.number.number1 but here "emp" data type...
What’s wrong with this way to add rows to dataframe?
Try: data <- data.frame(A= character(0), B= character(0), stringsAsFactors=FALSE) data[1, ] <- c("AA", "BB") In your example, A and B are factors. I would suggest a different approach from the other answers. If A and B are something like names or ID...
Panagram python code [closed]
import string def isPanagram(sentence): alphabet = string.lowercase[:26] # list of letters a-z return all(letter in sentence.lower() for letter in alphabet) The function all will return true if all elements in a list are true The list comprehension inside goes...