Reading ASCII / Unicode character in Java

[NGRaju]

I'm having a special character é.
Unicode character is 233.

I want to read this Unicode character from a string and convert it into another unicode character.

Please let me know the reading and writing of Unicode characters in java.

[Norm]

ead this Unicode character from a string and convert it into another unicode character.

Not sure what this means. Strings are sequences of unicode characters. Unicode chars range in value from 0 to \uFFFF.
What is the conversion you talk of? Lets use a different Unicode char to talk about, say 'a'. To convert it to the next letter 'b' you can add 1 to it. 'b' = 'a' + 1

[hardwired]

import javax.swing.*;

public class Test {
    public static void main(String[] args) {
        JTextArea textArea = new JTextArea();
        textArea.setFont(textArea.getFont().deriveFont(18f));
        char c = 'é';
        int codePoint = (int)c;
        String hex = Integer.toHexString(codePoint);
        textArea.append("c = " + c + "  codePoint = " + codePoint +
                        "  hex = " + hex + "\n");
        char nextChar = (char)(codePoint + 1);
        textArea.append("nextChar = " + nextChar + "\n");
        textArea.append("'a' + 1 = " + (char)('a'+1) + "\n");
        textArea.append("codePoint for nextChar = " + (int)nextChar + "\n");
        textArea.append("char for 0x00e9 = " + (char)0x00e9 + "\n");
        textArea.append("char for \\u00e9 = " + "\u00e9");
        JOptionPane.showMessageDialog(null, new JScrollPane(textArea), "", -1);
    }
}