Array getChar() Method in Java - GeeksforGeeks

04 Nov, 2019
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 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);       }              }}
GfG

Program 2:
// 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);        }    }}
Exception : java.lang.ArrayIndexOutOfBoundsException

Program 3:
// 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);        }    }}
Exception : java.lang.NullPointerException

Program 4:
// 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 {            //iilegal Argument            char x =  Array.getChar(a, 6);            System.out.println(x);        } catch (Exception e) {            // throws Exception            System.out.println("Exception : " + e);        }    }}
Exception : java.lang.IllegalArgumentException: Argument is not an array

ManasChhabra2
Java-Arrays
Java-Collections
Java-Functions
java-lang-reflect-package
java-reflection-array
Java
Java
Java-Collections
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