Write a Java program to list the available character sets in charset objects

import java.nio.charset.Charset;
public class Exercise {
  public static void main(String[] args) {
	System.out.println("List of available character sets: ");  
    for (String str : Charset.availableCharsets().keySet()) {
      System.out.println(str);
    }
  }
}

output:

List of available character sets:                                                                             
Big5                                                                                                      
Big5-HKSCS                                                                                                    
CESU-8                                                                                                      
EUC-JP                                                                                                      
EUC-KR                                                                                                      
GB18030                                                                                                      
GB2312                                                                                                      
GBK                                                                                                      
IBM-Thai                                                                                                      
IBM00858                                                                                                      
IBM01140          
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x-windows-950                                                                                                 
x-windows-iso2022jp