#include <QCoreApplication>

#include <QDebug>

class QString;

int main(int argc, char *argv[])

{

    QCoreApplication a(argc, argv);

    /*

    QString str = "Berlin";

    str.fill('z');

    // str == "zzzzzz"

    QByteArray ba = str.toLatin1();

    char *mm = ba.data();

    qDebug()<<mm<<endl;

    str.fill('A', 2);

    // str == "AA"

    ba = str.toLatin1();

    mm = ba.data();

    qDebug()<<mm<<endl;

    qDebug()<<"endl";

    */

    /*

    QString x = "sticky question";

    QString y = "sti";

    qDebug()<<x.indexOf(y)<<endl;               // returns 0

    qDebug()<<x.indexOf(y, 1)<<endl;            // returns 10

    qDebug()<<x.indexOf(y, 10)<<endl;           // returns 10

    qDebug()<<x.indexOf(y, 11)<<endl;           // returns -1

    */

    /*

    QString str = "Meal";

    str.insert(1, QString("ontr"));

    // str == "Montreal"

    qDebug()<<str<<endl;

    */

    /*

    qDebug()<<QString().isEmpty();            // returns true

    qDebug()<<QString("").isEmpty();          // returns true

    qDebug()<<QString("x").isEmpty();         // returns false

    qDebug()<<QString("abc").isEmpty();       // returns false

    */

    /*

    qDebug()<<QString().isNull();             // returns true

    qDebug()<<QString("").isNull();           // returns false

    qDebug()<<QString("abc").isNull();        // returns false

    */

    /*

    QString x = "Pineapple";

    QString y = x.left(4);      // y == "Pine"

    qDebug()<<x;

    qDebug()<<y;

    */

    /*

    QString x = "Nine pineapples";

    QString y = x.mid(5, 4);            // y == "pine"

    QString z = x.mid(5);               // z == "pineapples"

    qDebug()<<x;

    qDebug()<<y;

    qDebug()<<z;

    */

    /*

    QString s = "Montreal";

    s.remove(1, 4);

    // s == "Meal"

    qDebug()<<s;

    */

    /*

    QString x = "Say yes!";

    QString y = "no";

    x.replace(4, 3, y);

    // x == "Say no!"

    qDebug()<<x;

    qDebug()<<y;

    */

    QString str0;

    QString str1;

    QString str2;

    QString csv = "forename,middlename,surname,phone";

    QString path = "/usr/local/bin/myapp"; // First field is empty

    QString::SectionFlag flag = QString::SectionSkipEmpty;

    str0 = csv.section(',', 2, 2);   // str == "surname"

    str1 = path.section('/', 3, 4);  // str == "bin/myapp"

    str2 = path.section('/', 3, 3, flag); // str == "myapp"

    qDebug()<<str0;

    qDebug()<<str1;

    qDebug()<<str2;

    return a.exec();

}