phani123java
diff --git a/‎Chapter13/CharsetDemo.java‎
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diff --git a/‎Chapter13/StringCharset.java‎
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+import java.nio.charset.Charset;
+import java.nio.ByteBuffer;
+
+public class CharsetDemo{
+	
+	public static void main(String[] args){
+		String msg = "ξξεγβνεμ θθδμχρ";
+		if(args.length > 0){
+			msg = args[0];
+		}
+		String[] csNames = {"US-ASCII", "ISO-8859-1", "UTF-8", "UTF-16BE", "UTF-16LE", "UTF-16"};
+		encode(msg, Charset.defaultCharset());
+		for(String csName : csNames){
+			encode(msg, Charset.forName(csName));
+		}
+	}
+	
+	static void encode(String msg, Charset charset){
+		System.out.println("Charset: " + charset.toString());
+		System.out.println("Message: " + msg);
+		
+		ByteBuffer buffer = charset.encode(msg);
+		System.out.println("Encoded: ");
+		
+		for(int i=0; i< buffer.limit(); i++){
+			int _byte = Byte.toUnsignedInt(buffer.get(i));
+			char ch = (char)_byte;
+			if(Character.isWhitespace(ch) || Character.isISOControl(ch)){
+				ch = '\u0000'; // empty string
+			}
+			System.out.printf("%2d: %02x (%c)%n", i, _byte, ch);
+		}
+		System.out.println();
+	}
+}
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+import java.io.UnsupportedEncodingException;
+
+public class StringCharset{
+	
+	public static void main(String[] args) throws UnsupportedEncodingException{
+		byte[] encodedMsg = {0x66, 0x61, (byte)0xc3, (byte)0xa7, 0x61, 0x64, 0x65, 0x20, 0x74,
+							0x6f, 0x75, 0x63, 0x68, (byte)0xc3, (byte)0xa9};
+		System.out.println("Initial bytes length = " + encodedMsg.length);
+		for(byte bt : encodedMsg){
+			System.out.print(Integer.toHexString(Byte.toUnsignedInt(bt)) + " ");
+		}
+		System.out.println();
+		String s = new String(encodedMsg, "UTF-8");  // with specified charset
+		System.out.println(s);
+		System.out.println();
+		
+		byte[] bytes = s.getBytes();  // with default charset.
+		System.out.println("SecondEncoded bytes length = " + bytes.length);
+		for(byte _byte : bytes){
+			System.out.print(Integer.toHexString(Byte.toUnsignedInt(_byte)) + " ");
+		};
+		System.out.println();
+	}
+}