Java String getChars() Method

Java String getChars() method copies characters from current String to the destination character array .

Syntax:

public void getChars(int srcBeginIndex, int srcEndIndex, char[] destination, int dstBeginIndex)

Parameters:

srcBegin - index of the first character in the string to copy.

srcEnd - index of the last character in the string to copy.

destination - the destination array.

dstBegin - the start offset in the destination array

Return:

It doesn't return any value

Throws:

It throws StringIndexOutOfBoundException if any of the following is true:

• srcBegin is negative.
• srcBegin is greater than srcEnd
• srcEnd is greater than the length of this string
• dstBegin is negative
• dstBegin+(srcEnd-srcBegin) is larger than destination.length

Java String getChars() Example 1

public class JavaStringGetCharsEx1
{ 
public static void main(String args[])
{ 
 String str = new String("Welcome to the Tutorial and example"); 
      char[] ch = new char[35]; 
      try{ 
         str.getChars(14, 35, ch, 0); 
         System.out.println(ch); 
      }catch(Exception ex){System.out.println(ex);} 
 }
}

output:

Tutorial and example

Java String getChars() Example 2

public class JavaStringGetCharsEx2
{ 
public static void main(String args[])
{ 
    String name = "nitish";
    char[] c = new char[6];
      try{ 
          //retrieving the first character of String
        name.getChars(5, 1, c, 0); 
         System.out.println(c); 
      }catch(Exception e){
         System.out.println(e);     
      } 
 }
}

Output:

java.lang.StringIndexOutOfBoundsException:
String index out of range: -4