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