what am i missing?
the sample code does not ask for any user input, yet it is supposed to
output three names; david charles young. following the directions,
and cut'n pasting the code, i get the output expected, which is no
names. where are the names coming from?
///////////////////////////////////////////////////////////////////////////////////
(1.1) Build and run Hello Java program that receives command-line
arguments
1. Go to a directory where you want to create Java program
C:\>cd \myjavaprograms
2. Write HelloCommandLineArguments.java using your editor of choice
such as notepad on Windows platform or gedit on Solaris platform (in
this example, I am using jedit) as shown in Code-1.10 below.
C:\myjavaprograms>jedit HelloCommandLineArguments.java
public class HelloCommandLineArguments {
public static void main( String[] args ){
// Print the string "Hello, " on screen
System.out.println("I am saying Hello to the people below..
");
// Check if a command line argument exists
if(args.length == 0)
System.exit(0);
// Display the arguments from the command line
for(int counter = 0; counter < args.length; counter++){
System.out.println("argument index " + counter + ": " +
args[counter]);
}
}
}
Code-1.10: HelloCommandLineArguments.java
/////////////////////////////////////////////////////////////////////////////////////////////////////
results in this output
(1.1) Build and run Hello Java program that receives command-line
arguments
1. Go to a directory where you want to create Java program
C:\>cd \myjavaprograms
2. Write HelloCommandLineArguments.java using your editor of choice
such as notepad on Windows platform or gedit on Solaris platform (in
this example, I am using jedit) as shown in Code-1.10 below.
C:\myjavaprograms>jedit HelloCommandLineArguments.java
public class HelloCommandLineArguments {
public static void main( String[] args ){
// Print the string "Hello, " on screen
System.out.println("I am saying Hello to the people below..
");
// Check if a command line argument exists
if(args.length == 0)
System.exit(0);
// Display the arguments from the command line
for(int counter = 0; counter < args.length; counter++){
System.out.println("argument index " + counter + ": " +
args[counter]);
}
}
}
Code-1.10: HelloCommandLineArguments.java
3. Compile HelloCommandLineArguments.java using javac compiler.
C:\myjavaprograms>javac HelloCommandLineArguments.java
4. Run the HelloCommandLineArguments program using java command
passing arguments.
C:\myjavaprograms>java HelloCommandLineArguments David Charles Young
I am saying Hello to the people below..
argument index 0: David
argument index 1: Charles
argument index 2: Young
/////////////////////////////////////////////////////////////////////////////////////////////
results in this output........
E:\Programming\Java Passion\basic\6_commandarguments>java
HelloCommandLineArguments
I am saying Hello to the people below..
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