What does args mean in java
"args" in Java is a String array used to store command line parameters. When running a Java program and passing parameters to it, these parameters will be stored in the main method (main) through the "args" array. .
The meaning of args in Java
In Java, "args" is an array used to store commands row parameters.
Detailed description:
When we run a Java program, we can pass parameters to the program. These arguments are passed to the main method (main) via the "args" array. Example:
public class Main { public static void main(String[] args) { // args 是一个 String 数组,存储命令行参数 } }
Example:
Suppose we have a Java program named "ArgsDemo.java" that accepts two command line arguments. We can run it like this:
<code>java ArgsDemo arg1 arg2</code>
In this example, "arg1" and "arg2" will be stored in the "args" array:
public class ArgsDemo { public static void main(String[] args) { System.out.println("第一个参数:" + args[0]); System.out.println("第二个参数:" + args[1]); } }
Output:
<code>第一个参数:arg1 第二个参数:arg2</code>
Note:
- #The "args" array can contain any number of parameters.
- If no command line arguments are provided, the "args" array will be empty (length 0).
- "args" The element type of the array is String.
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