The java.lang.reflect.Array.getChar() is an inbuilt method in Java and is used to return the element present at a given index from the specified Array as a char. Syntax
Array.getChar(Object []array,int index)
Parameters :
- array : The object array whose index is to be returned.
- index : The particular index of the given array. The element at ‘index’ in the given array is returned.
Return Type: This method returns the element of the array as char. Note: Typecast isn’t necessary as the return type is char Exception: This method throws following exception
- NullPointerException – when the array is null.
- IllegalArgumentException – when the given object array is not an Array.
- ArrayIndexOutOfBoundsException – if the given index is not in the range of the size of the array.
Below programs illustrate the getChar() method of Array Class: Program 1:
Java
// Java code to demonstrate getChar() method of Array classimport java.lang.reflect.Array;public class GfG { // main method public static void main(String[] args) { // Declaring and defining an byte array char a[] = {'G','f','G'}; // Traversing the array for(int i = 0;i<3;i++){ // Array.getChar() method char x = Array.getChar(a, i); // Printing the values System.out.print(x); } }} |
Output:
GfG
Program 2:
Java
// Java code to demonstrate getChar() method in Arrayimport java.lang.reflect.Array; public class GfG { // main method public static void main(String[] args) { // Declaring and defining an char array char a[] = {'G','f','G'}; try { // invalid index char x = Array.getChar(a, 6); System.out.println(x); } catch (Exception e) { // throws Exception System.out.println("Exception : " + e); } }} |
Output:
Exception : java.lang.ArrayIndexOutOfBoundsException
Program 3:
Java
// Java code to demonstrate getChar() method in Arrayimport java.lang.reflect.Array; public class GfG { // main method public static void main(String[] args) { // Declaring and defining an char array to null char a[] = null; try { // null Object array char x = Array.getChar(a, 6); System.out.println(x); } catch (Exception e) { // throws Exception System.out.println("Exception : " + e); } }} |
Output:
Exception : java.lang.NullPointerException
Program 4:
Java
// Java code to demonstrate getChar() method in Arrayimport java.lang.reflect.Array; public class GfG { // main method public static void main(String[] args) { // Declaring and defining an char variable char a = 'a'; try { //illegal Argument char x = Array.getChar(a, 6); System.out.println(x); } catch (Exception e) { // throws Exception System.out.println("Exception : " + e); } }} |
Output:
Exception : java.lang.IllegalArgumentException: Argument is not an array
