JavaのUnicodeとcodePoint

/*
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package sortandcollections;

import java.util.ArrayList;
import java.util.List;
import java.util.TreeSet;

/**
 *
 * @author Lowitty
 */
public class SortAndCollections {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
//        // TODO code application logic here
//        char d = 0x0041;
//        String s3 = "