Array getChar() Method in Java

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 class
import 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 Array
import 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 Array
import 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 Array
import 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