Read line by line

Hi there ,

I have this code which reads file correctly, the file has many line how can I alter this code to be read for examlp 10 lines only and print that in text browser .

In java (because I am java progarmmer ) we use .next method what about here !!!?

void Widget::on_pushButton_clicked() 
{ 
QFile file("file.txt"); 
if(!file.exists()){ 
ui ->textBrowser->append("file is not exists"); 
} 
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)){ 
ui ->textBrowser->append("file is not open"); 
return ; 
} 
QTextStream in(&file); 
while (!in.atEnd()) 
{ 
QString content = in.readLine(); 
ui->textBrowser->append(content); 
} 
}

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