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:

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// 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);
       }
          
    }
}

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Output:

GfG

Program 2:

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// 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);
        }
    }
}

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Output:

Exception : java.lang.ArrayIndexOutOfBoundsException

Program 3:

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// 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);
        }
    }
}

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Output:

Exception : java.lang.NullPointerException

Program 4:

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// 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 {
            //iilegal Arguement
            char x =  Array.getChar(a, 6);
            System.out.println(x);
        } catch (Exception e) {
            // throws Exception
            System.out.println("Exception : " + e);
        }
    }
}

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Output:

Exception : java.lang.IllegalArgumentException: Argument is not an array


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