Multiple using statements with if condition

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Multiple using statements with if condition
C++ Multiple Condition Statements - Merging
multiple executed statements in one condition? help please
How to try multiple statements on AND condition without stopping on the first one?
How to write multiple select statements with multiple where condition in single query?
jquery multiple condition statements

Multiple using statements with if condition

Tag : chash , By : Angelo Giannatos

Date : January 12 2021, 09:11 PM

like below fixes the issue I need to read one file and write processed data into one or optionally two files. , Using blocks can handle a null fine. You can then do something like:

using (var sr = new StreamReader(readFile))
using (var sw = StreamWriter(writeFile))
using (var sw2 = condition ? new StreamReader(writeFile2) : null)
{
    var line = sr.ReadLine();
    sw.WriteLine(line);
    sw2?.WriteLine(line);
}

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C++ Multiple Condition Statements - Merging

Tag : cpp , By : sam

Date : March 29 2020, 07:55 AM

Hope that helps I have written a program according to a specification. , Basic polymorphic approach:

enum Type { tX, tY, tZ};

struct Data
{
    Type type;
    int data_;
};

class Processor
{

public:

    virtual void fillCustomersBDate(const Data& data) = 0; 
    virtual void fillCustomersCash(const Data& data) = 0;

};

class XProcessor : public Processor 
{
    virtual void fillCustomersBDate(const Data& data) { /* X stuff */}
    virtual void fillCustomersCash(const Data& data) {/* X stuff */}
};
class YProcessor : public Processor 
{
    virtual void fillCustomersBDate(const Data& data) {/* Y stuff */}
    virtual void fillCustomersCash(const Data& data) {/* Y stuff */}
};

void process(const Data& data)
{
    Processor* processor = processorForType(data.type);
    // Do general stuff
    processor->fillCustomersBDate(data);
    // Do general stuff
    processor->fillCustomersCash(data);
    // Do general stuff
    delete processor;
}

multiple executed statements in one condition? help please

Tag : java , By : Sandip

Date : March 29 2020, 07:55 AM

This might help you For if and else conditions, is there a way to put more than one statement to be executed for each condition? , Yes, enclose them in curly braces:

if ( loan < 1000 ) {
    f = (loan * 100 / 1000);
    System.out.println( "The loan amount is $" + loan );
    System.out.println( "The finance charge is $" + f );
    System.out.println( "The total cost is $" + (loan + f) );
}

How to try multiple statements on AND condition without stopping on the first one?

Tag : php , By : Matt Logan

Date : March 29 2020, 07:55 AM

hop of those help? For logical and faster purposes, whenever you make PHP try two statements using an AND condition, if the first one fails he doesn't attempt to try the second one... for logical and faster purposes that is beautiful indeed, but on my case I would need to know if the second statement also didn't work, so I don't need to make an user go through the same page a lot of times because the mistake was different than before...

if ($firstTry & $thenTry) {$sayCheese;}

How to write multiple select statements with multiple where condition in single query?

Tag : php , By : Neuromaster

Date : March 29 2020, 07:55 AM

this one helps. I am working on php with sql .I have one teachers_rating table in database I want to get ratings like how many members are give 5 rating like that only 4, like 3, like so...I used this sql query check once. , This is called conditional aggregation :

SELECT COUNT(CASE WHEN t.rating =5 THEN 1 END) as five,
       COUNT(CASE WHEN t.rating =4 THEN 1 END) as four,
       COUNT(CASE WHEN t.rating =3 THEN 1 END) as three
FROM teachers_rating t
WHERE t.id = '23'

SELECT t.id,
       COUNT(CASE WHEN t.rating =5 THEN 1 END) as five,
       COUNT(CASE WHEN t.rating =4 THEN 1 END) as four,
       COUNT(CASE WHEN t.rating =3 THEN 1 END) as three
FROM teachers_rating t
GROUP BY t.id