This post is to demonstrate the use of Command Line Arguments
Consider a program
public class CommandLineDemo
{
public static void main(String[] args)
{
String name=args[0];
System.out.println("Hello "+name);
}
}
Now in the given program, the line in red requires the value which will come as a command line argument.
Hence to accept that value, there is a small change in run command.
Compilation is same : javac CommandLineDemo.java
Run: java CommandLineDemo Tom
after writing file name there will be a space followed by the argument.
Still not clear watch the video
Consider a program
public class CommandLineDemo
{
public static void main(String[] args)
{
String name=args[0];
System.out.println("Hello "+name);
}
}
Now in the given program, the line in red requires the value which will come as a command line argument.
Hence to accept that value, there is a small change in run command.
Compilation is same : javac CommandLineDemo.java
Run: java CommandLineDemo Tom
after writing file name there will be a space followed by the argument.
Still not clear watch the video
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