CharBuffer order() methods in Java with Examples

The order() method of java.nio.CharBuffer class is used to retrieve this buffer’s byte order. The byte order of a char buffer created by allocation or by wrapping an existing char array is the native order of the underlying hardware. The byte order of a char buffer created as a view of a byte buffer is that of the byte buffer at the moment that the view is created.

Syntax:

public abstract ByteOrder order()

Return Value: This method returns this buffer’s byte order.

Below are the examples to illustrate the order() method:

Examples 1:

// Java program to demonstrate 
// order() method 
  
import java.nio.*; 
import java.util.*; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
        // creating object of CharBuffer 
        // and allocating size capacity 
        CharBuffer cb 
            = CharBuffer.allocate(4); 
  
        // append the int value in the charbuffer 
        cb.append('a') 
            .append('b') 
            .append('c') 
            .append('d'); 
  
        // rewind the Bytebuffer 
        cb.rewind(); 
  
        // Retrive the ByteOrder 
        // using order() method 
        ByteOrder order = cb.order(); 
  
        // print the char buffer and order 
        System.out.println("CharBuffer is : "
                           + Arrays.toString(cb.array()) 
                           + "\nOrder: " + order); 
    } 
} 

Output:

CharBuffer is : [a, b, c, d]
Order: LITTLE_ENDIAN

Examples 2:

// Java program to demonstrate 
// order() method 
  
import java.nio.*; 
import java.util.*; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
        // creating object of CharBuffer 
        // and allocating size capacity 
        CharBuffer cb = CharBuffer.allocate(4); 
  
        // Retrive the ByteOrder 
        // using order() method 
        ByteOrder order = cb.order(); 
  
        // print the char buffer and order 
        System.out.println("CharBuffer is : "
                           + Arrays.toString(cb.array()) 
                           + "\nOrder: " + order); 
    } 
} 

Output:

CharBuffer is : [,,,  ]
Order: LITTLE_ENDIAN

Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/CharBuffer.html#order–

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