CODEWITHSUNDEEP
javabashshell
sefor
sefor

Reputation: 61

How can a script take different types of command line arguments and feed it to a java program?

So I need to make a java program that represents a bank tiller. However, I need to use an executable script that will feed the command line arguments to the java program. Unfortunately, there are multiple types of commands I can do that would need to call the java program.

Since there are different types of command options (start, buy, and change, I do not know how I could go about feeding the right argument information to the java program. Any assistance would be greatly appreciated.

Upvotes: 0

Views: 74

Answers (4)

Slihp
Slihp

Reputation: 793

Take a look at the Apache CLI stuff. Specifically the POSIX parser (http://www.javaworld.com/article/2072482/command-line-parsing-with-apache-commons-cli.html)

It will enable you to specify POSIX style command line arguments (--buy {value} --sell {value})...

Upvotes: 0

Elliott Frisch
Elliott Frisch

Reputation: 201399

Unless I'm missing something, you could use $@ to pass the script's arguments to your Java program. For example,

#!/usr/bin/env bash
export CLASSPATH="$HOME/src/java/"
java com.example.MyTeller "$@"

Upvotes: 2

GC_
GC_

Reputation: 508

Here is a sample:

public class PrintArgs {
    public static void main (String[] args) {
        for (int x=0; x<args.length; x++) {
            System.out.println(arg[x]);
        }
    }
}

Call it like this:

java PrintArgs start 80 = 10 2 2 2

The script I am not that sure about, but I you can look it up. Google shell scripts arguments.

Upvotes: 0

Barmar
Barmar

Reputation: 780673

Pass the script arguments to your Java program:

java programName "$@"

Upvotes: 1

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