Java Uses command line parameters

Java Uses command line parameters-general Linux technology-Linux programming and kernel information. The following is a detailed description. Sometimes you want to pass information to a program when running the program. This is achieved by passing the command-line arguments to main. The command line parameter is the information that follows the program name in the command line during program execution. Accessing command line parameters in Java programs is quite easy-they are stored as strings in the String array passed to main. For example, the following program shows all the command line parameters called:

// Display all command-line arguments.
Class CommandLine {
Public static void main (String args []) {

For (int I = 0; iSystem. out. println ("args [" + I + "]:" +
Args );

}
}

Run the following command to execute this program:

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Java Commandline this is a test 100-1

After execution, you will see the following output:

Args [0]: thisargs [1]: isargs [2]: aargs [3]: testargs [4]: 100 args [5]:-1

Note: All command line parameters are passed as strings. You must manually convert numeric values to their internal form.