</p>
<pre>
#include <iostream.h>
#include <stdlib.h>

#include <stdio.h>
#include <stdlib.h>
typedef int BOOL;

class File {
public:
    File();
    File(const char *filename, const char *mode);
    void Type();
    BOOL Open(const char *filename, const char *mode);

    FILE *f ;
};
File ::File()
{
    f = NULL;
}



File :: File(const char *filename, const char *mode)
{
    f = fopen(filename, mode);

    if ( f == NULL){
        fprintf(stderr, "cannot open\n");
        exit(1);
    }
}

void File :: Type()
{
    fseek( f, 0, SEEK_SET);

    int ch;

    while ((ch = fgetc(f)) != EOF)
        putchar(ch);
}

BOOL File :: Open(const char*filename, const char *mode)
{
    return ((f = fopen(filename, mode)) != NULL);
}

int main(void)
{
    File x("text1.cpp","r");
    File y("c:\\autoexec.bat","r");

    x.Type();
    y.Type();
system("PAUSE");
    return 0;
}


</pre>
<p>