Java Program - Command Line Arguments in JavaScript Program

Command-Line Arguments:

In Java programming, we can provide zero or more command line arguments of  String type from a terminal window. The sequence of arguments follows the name of the program class and is stored in an array of String objects passed to the public static void main(String[] args) method.

Command-Line Arguments Example:-

 public class CommandLine{
   public static void main(String[]args){
      for(int i=0; i<args.length; i++)
        System.out.println(”Value of args in”+i+” index is : ”+args[i]);
  }
 }

[farid@local host MyJavaBook] \ $ javac CommandLine.java
[farid@local host MyJavaBook] \ $ java CommandLine 13 15 17

Value of args in 0 index is : 13
Value of args in 1 index is : 15
Value of args in 2 index is : 17


##Java application can accept any number of arguments directly from the command line.

Command Line Arguments in JavaScript:

Java application can accept any number of arguments directly from the command line. The user can enter command-line arguments when invoking the application. When running the java program from java command, the arguments are provided after the name of the class separated by space. For example, suppose a program named CmndLineArguments that accept command line arguments as a string array and echo them on standard output device.

java CmndLineArguments Mahendra zero one two three

CmndLineArguments.java

/**
   * How to use command line arguments in java program.
   */
   class CmndLineArguments {

  public static void main(String[] args) {
    int length = args.length;
    if (length <= 0) {
    System.out.println("You need to enter some arguments.");
    }
   for (int i = 0; i < length; i++) {
    System.out.println(args[i]);
   }
   }


Output of the program:

Run program with some command line arguments like:

java CmndLineArguments Mahendra zero one two three

OUTPUT:

Command line arguments were passed :
Mahendra
zero
one
two
three

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