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What is use of string args in java?

Updated: 8/10/2023
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13y ago

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If you're referring to "args" in the line: "public static void main(String args[])", then it is the name of the array that holds the command line arguments. So, if you called your java program (called myJavaProgram) from the command line using the following line:

java myJavaProgram Hello World "These are args"

Then args would have the following values stored in it:

args[0] = "Hello"

args[1] = "World"

args[2] = "These are args"

If you called your program from the command line like this:

java myJavaProgram Different Args

then args would contain

args[0] = "Different"

args[1] = "Args"

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13y ago
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13y ago

If this is in reference to the "String[] args" passed as a parameter to the "public void static main()" method, then it refers to the list of arguments passed to the class when it is called. Eg: When the following command is executed "java abc xxx yyy" then in the main method of the abc.java, the first parameter of args i.e. args[0] would have "xxx" and the second parameter of args i.e. args[1] would have "yyy". Referring to the 3rd or any other higher element would throw a "IndexOutOfBounds" exception

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1y ago

String[] args means an array of sequence of characters (Strings) that are passed to the "main" function. This happens when a program is executed. Example when you execute a Java program via the command line: java MyProgram This is just a test.

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11y ago

it means that we are declaring a variable args which have String datatype...

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