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Add a new line in file?
I want to add a new line after a string is inserted.
2 Answers
2
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Is there a common Java utility to break a list into batches?
...h, n == fullChunks ? size : (n + 1) * length));
}
public static void main(String[] args) {
List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
System.out.println("By 3:");
batches(list, 3).forEach(System.out::println);
System.out.println("B...
Create a dictionary with list comprehension
...er and its corresponding position in english alphabet
>>> import string
>>> dict1 = {value: (int(key) + 1) for key, value in
enumerate(list(string.ascii_lowercase))}
>>> dict1
{'a': 1, 'c': 3, 'b': 2, 'e': 5, 'd': 4, 'g': 7, 'f': 6, 'i': 9, 'h': 8,
'k': 11, 'j': 10, 'm'...
Removing duplicate objects with Underscore for Javascript
...: "1" } ];
var x = _.uniq( _.collect( foo, function( x ){
return JSON.stringify( x );
}));
console.log( x ); // returns [ { "a" : "1" }, { "b" : "2" } ]
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in_array() and multidimensional array
...es $item. Not to mention the potential to unintentionally match part of a string when there is a double quote in the string itself. I would only trust this function in small/simple situations like this question.
– mickmackusa
Mar 3 '17 at 12:53
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Spring boot @ResponseBody doesn't serialize entity id
...Person.class })
public interface ProjectionPerson {
Integer getIdPerson();
String getFirstName();
String getLastName();
}
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HTML5 Email Validation
... type=email page of the www.w3.org site notes that an email address is any string which matches the following regular expression:
/^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/
Use the required attribute and a pattern attribute to require the value to match the regex...
What is the purpose of a question mark after a type (for example: int? myVariable)?
...it seems to not be allowed. return value ? value : "isNull"; tells me that string value isnt convertable into bool.
– C4d
Sep 7 '15 at 13:20
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How to replace spaces in file names using a bash script
... expansion mechanism to replace a pattern within a parameter with supplied string.
The relevant syntax is ${parameter/pattern/string}. See: https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html or http://wiki.bash-hackers.org/syntax/pe .
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Why doesn't this code simply print letters A to Z?
...atthew: Alphabetize them. 'aa' would come first, thus it's "less than" the string 'z'. The loop terminates at 'zz' because it's alphabetically "greater than" (comes after) 'z'. It's illogical in the sense that you can "increment" something and get a lesser value, but it's logical in an alphabetical ...