The isRegistered() method is a built-in method of the java.nio.charset checks if a given charset is registered or not under the IANA Charset Registry.
Syntax:
public final boolean isRegistered()
Parameters: The function does not accepts any parameter.
Return Value: The function returns a boolean value. It returns true if it is registered, else it returns false.
Below is the implementation of the above function:
Program 1:
// Java program to demonstrate// the above function import java.nio.charset.Charset;import java.util.Iterator;import java.util.Map; public class GFG { public static void main(String[] args) { // Generate the Charset Charset first = Charset.forName("ISO-2022-CN"); // Check if this Charset is registered System.out.println(first.isRegistered()); }} |
Output:
true
Program 2:
// Java program to demonstrate// the above function import java.nio.charset.Charset;import java.util.Iterator;import java.util.Map; public class GFG { public static void main(String[] args) { // Generate the Charset Charset second = Charset.forName("x-windows-949"); // Check if this Charset is registered System.out.println(second.isRegistered()); }} |
Output:
false
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/charset/Charset.html#isRegistered–
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