Select an expression to complete the program segment below, which is designed to read data from a file whose name is specified as the first command line argument. If no command line arguments are given, the program reads data from the default.txt file. String fileName = "default.txt";
If ( ________________________ )
{
FileName = args[0];
}
// additional statements to open file and read data
A) args 0
B) args[0] != null
C) args.length = 0
D) args.length 0

Question

Select an expression to complete the program segment below, which is designed to read data from a file whose name is specified as the first command line argument. If no command line arguments are given, the program reads data from the default.txt file. String fileName = "default.txt";
If ( ________________________ )
{
FileName = args[0];
}
// additional statements to open file and read data
A) args > 0
B) args[0] != null
C) args.length >= 0
D) args.length > 0

Quizplus · Accepted Answer

The condition `args.length > 0` checks if there is at least one command line argument provided, which means the program should use the first argument as the file name.

Select an Expression to Complete the Program Segment Below, Which