Java – String getChars() Method example

The method getChars() is used for copying String characters to an Array of chars.

public void getChars(int srcBegin, int srcEnd, char[] dest, int destBegin)

Parameters description:
srcBegin – index of the first character in the string to copy.
srcEnd – index after the last character in the string to copy.
dest – Destination array of characters in which the characters from String gets copied.
destBegin – The index in Array starting from where the chars will be pushed into the Array.

It throws IndexOutOfBoundsException – If any of the following conditions occurs:
(srcBegin<0) srcBegin is less than zero. (srcBegin>srcEnd) srcBegin is greater than srcEnd.
(srcEnd > length of string) srcEnd is greater than the length of this string.
(destBegin<0) destBegin is negative.
dstBegin+(srcEnd-srcBegin) is larger than dest.length.

Example: getChars() method

public class GetCharsExample{
   public static void main(String args[]){
       String str = new String("This is a String Handling Tutorial");
       char[] array = new char[6];
       str.getChars(10, 16, array, 0);
       System.out.println("Array Content:" );
       for(char temp: array){
           System.out.print(temp);
       }

       char[] array2 = new char[]{'a','a','a','a','a','a','a','a'};
       str.getChars(10, 16, array2, 2);
       System.out.println("Second Array Content:" );
       for(char temp: array2){
    	   System.out.print(temp);
       }
   }	
}

Output:

Array Content:
StringSecond Array Content:
aaString