The **String `getChars()` method** in Java is used to copy the characters of a string into a character array.

# Syntax
The `getChars()` method is declared as shown in the code snippet below:
```Java
public void getChars(int srcBeginIndex, int srcEndIndex, char[] dest,  int destBeginIndex)
```
* **`srcBeginIndex`**: The index of the string's first character to be copied.
* **`srcEndIndex`**: The index of the last character of the string to be copied.
* **`dest`**: The character array in which the characters of the string will be copied.
* **`destBeginIndex`**: The starting index within `dest` from where characters will be pushed into `dest`.

# Return value
The `getChars()` method does not return any values.
> Note:
The `getChars()` method throws the `IndexOutOfBoundsException` if any of the following condition satisties:
> * `srcBeginIndex` < 0
> * `srcBeginIndex` > `srcEndIndex`
> * `srcEndIndex` > string length
> *  `destBeginIndex` < 0
> * `destBeginIndex`+(`srcEndIndex`-`srcBeginIndex`) > `dest` length

# Examples
## Example 1
Consider the code snippet below, which demonstrates the use of the `getChars()` method.

class Main {
    public static void main( String args[] ) {
        String str = "Hello World123";
        char[] dest = new char[12];

        try {
            str.getChars(0, 11, dest, 0);
            System.out.println(dest);
        }
        catch (Exception e) {
            System.out.println("Exception Thrown:" + e);
        }
    }
}

## Explanation
* A string `str` is declared in *line 3*.
* A character array `dest` is declared in *line 4*.
* The `getChars()` method is used in *line 7* to copy the first 11 characters of `str` in `dest`.

## Example 2
Consider another example of the `getChars()` method in which the `IndexOutOfBoundsException` is thrown. 

class Main {
    public static void main( String args[] ) {
        String str = "Hello World123";
        char[] dest = new char[10];

        try {
            str.getChars(0, 11, dest, 0);
            System.out.println(dest);
        }
        catch (Exception e) {
            System.out.println("Exception Thrown:" + e);
        }
    }
}

## Explanation
* A string `str` is declared in *line 3*.
* A character array `dest` is declared in *line 4*.
* The `getChars()` method is used in *line 7* to copy the first 11 characters of `str` in `dest`. The `IndexOutOfBoundsException` is thrown because the length of `dest` is `10`, which means that no more than ten characters can be copied in it, and the `getChars()` method attempts to store `11` characters in it.


What is the String getChars() method in Java?

Used to copy characters from a string to an array; throws an exception for invalid indices.