Java String getChars() with examples

Difficulty Level : Basic
Last Updated : 04 Dec, 2018

The java string getChars() method copies characters from the given string into the destination character array.

Syntax:

public void getChars(int srhStartIndex, 
int srhEndIndex, char[] destArray, int destStartIndex)     
Parameters:
srhStartIndex : Index of the first character in the string to copy. 
srhEndIndex : Index after the last character in the string to copy.
destArray : Destination array where chars wil get copied.
destStartIndex : Index in the array starting from where the chars
                 will be pushed into the array.
Return: It does not return any value.

Exception: StringIndexOutOfBoundsException – If srhStartIndex, srhEndIndex are not in proper range.

Example : To show working of getChars() method

// Java program to demonstrate 
// working of getChars() method 
  
class Gfg1 { 
    public static void main(String args[]) 
    { 
        String str = "Welcome! to GeeksforGeeks"; 
  
        char[] destArray = new char[20]; 
        try { 
            str.getChars(12, 25, destArray, 0); 
            System.out.println(destArray); 
        } 
        catch (Exception ex) { 
            System.out.println(ex); 
        } 
    } 
} 

Output:

GeeksforGeeks

// Java program to demonstrate 
// exception condition in 
// working of getChars() method 
  
class Gfg2 { 
    public static void main(String args[]) 
    { 
        String str = "Welcome! to GeeksforGeeks"; 
  
        char[] destArray = new char[20]; 
        try { 
            // Starting index 0 and ending index 24 
            str.getChars(12, 26, destArray, 0); 
            System.out.println(destArray); 
        } 
        catch (Exception ex) { 
            System.out.println(ex); 
        } 
    } 
} 

Output:

java.lang.StringIndexOutOfBoundsException: String index out of range: 26

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