Java String - getChars() Method

The java.lang.String.getChars() method is used to copy characters from this string into the destination character array. The first character to be copied is at index srcBegin; the last character to be copied is at index srcEnd-1 (thus the total number of characters to be copied is srcEnd-srcBegin). The characters are copied into the subarray of dst starting at index dstBegin and ending at index: dstBegin + (srcEnd-srcBegin) - 1.

Syntax

public void getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin)

Parameters

Return Value

void type.

Exception

Throws IndexOutOfBoundsException, 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 dst.length.

Example:

In the example below, getChars() method is used to copy characters from the given string called MyStr into the given character array called MyArr.

import java.lang.*;

public class MyClass {
  public static void main(String[] args) {
    String MyStr = "Hello World!";
    char MyArr[] = new char[20];

    //copy characters from Mystr into MyArr
    MyStr.getChars(0, 12, MyArr, 0);

    //print the content of char array 
    System.out.print("MyArr contains:"); 
    for(char c: MyArr)
      System.out.print(" " + c);
  }
}

The output of the above code will be:

MyArr contains: H e l l o   W o r l d !