while loop in c++

// loop going to end in 5 laps
int x=1;
while ( x<=5 )
{
cout<<" hello"<<endl;
x++;
}

// infinti loop

int x=1;
while ( x<=5 )
{
cout<<" hello"<<endl;
}

// infinti loop
while ( true )
{
cout<<" hello"<<endl;
}