Given a file named testX.txt with one line containing 3 values: 4.5 Bahrain 99 and the following data definitions: int t1; double t3; string ts ; ifstream in.open("testX.txt") ; The C++ statement that correctly reads the 3 values from a file into the above defined variables is   in >> t3 >> ts >> t1 ;   in << t3 << ts >> t1 ;   testX >> t3 >> ts >> t1 ;

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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  1. Given a file named testX.txt with one line containing 3 values: 4.5 Bahrain 99 and the following data definitions:

    int t1; double t3; string ts ;

    ifstream in.open("testX.txt") ;

    The C++ statement that correctly reads the 3 values from a file into the above defined variables is

     
    1. in >> t3 >> ts >> t1 ;

       
    2. in << t3 << ts >> t1 ;

       
    3. testX >> t3 >> ts >> t1 ;

       
    4. testX << t3 << ts >> t1 ;

       
  2.  
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