CharsetEncoder replacement() method in Java with Examples

The replacement() method is a built-in method of the java.nio.charset.CharsetEncoder returns a byte array which is the replacement value of the encoder.

Syntax:

public final byte[] replacement()

Parameters: The function does not accepts any parameter.



Return Value: The function returns this encoder’s current replacement, which is never null and is never empty.

Below is the implementation of the above function:

Program 1:

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// Java program to implement
// the above function
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
  
public class Main {
    public static void main(String[] args) throws Exception
    {
        // Gets the encoder
        CharsetEncoder encoder = Charset.forName("UTF16").newEncoder();
  
        // Prints byte array representing
        // the replacement value
        System.out.println(encoder.replacement());
    }
}

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Output:

[B@232204a1

Program 2:

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// Java program to implement
// the above function
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
  
public class Main {
    public static void main(String[] args) throws Exception
    {
        // Gets the encoder
        CharsetEncoder encoder = Charset.forName("US-ASCII").newEncoder();
  
        // Prints byte array representing
        // the replacement value
        System.out.println(encoder.replacement());
    }
}

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Output:

[B@232204a1

Reference: https://docs.oracle.com/javase/10/docs/api/java/nio/charset/CharsetEncoder.html#replacement()



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