compare two string variables

[arumita]

thanx ChrisW67;
i tried like this:

#include <QCoreApplication>
#include <QString>
#include <QTextStream>
 
 
 
int main(void)
{
 
    QTextStream out(stdout);
    QString w1 = "amanda";
    QString w2 = "amondy";
    int n1 = w1.length();
    int n2 = w2.length();
    int count=0;
    int i;
    for(i=0;i<=n1;i++)
    {
       if (w1.at(i)==w2.at(i))
           count++;
    }
 
    float k = (count/n1)*100;
    if(k>=66)
            out<<"there is a matching"<<endl;
    else
            out<<"no matching"<< endl;
 
 
}

#include <QCoreApplication>
#include <QString>
#include <QTextStream>



int main(void)
{

    QTextStream out(stdout);
    QString w1 = "amanda";
    QString w2 = "amondy";
    int n1 = w1.length();
    int n2 = w2.length();
    int count=0;
    int i;
    for(i=0;i<=n1;i++)
    {
       if (w1.at(i)==w2.at(i))
           count++;
    }

    float k = (count/n1)*100;
    if(k>=66)
            out<<"there is a matching"<<endl;
    else
            out<<"no matching"<< endl;


}

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it get compiled but no output did i miss something???
thnx

[wysota]

You surely have an off-by-one error in your loop. The last index of an N sized string is N-1.

[Lesiok]

count and n1 are integers. So if count < n1 result of count/n1 == 0 then k == 0.
Change to this :

float k = ((float)count/n1)*100

float k = ((float)count/n1)*100

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[ChrisW67]

What happens when the two strings are not the same length?