java 通讯录列表

思路：使用名字的拼音按顺序排列，addText 需要两个参数，一个是内容，一个是内容的拼音。里面会根据拼音来排序

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使用方法

        Text text = new Text();
        text.addText("谢霆锋","xietingfeng");
        text.addText("周润发","zhourunfa");
        text.addText("张家辉","zhangjiahui");
        text.addText("刘德华","liudehua");
        text.addText("张学友","zhangxueyou");
        text.addText("杨幂","yangmi");
        text.addText("张柏芝","zhangbozhi");
        text.addText("陈冠希","chenguanxi");
        text.addText("Alibaba","Alibaba");
        text.addText("alibaba","alibaba");
        text.addText("alibaba","Alibaba");
        text.addText("百度","baidu");
        text.addText("baidu","baidu");

        List<String> text1 = text.toText();
        System.out.println(text1);

核心代码

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class Text {

    private List<TextInfo> textList;

    public Text() {
        this(new ArrayList<TextInfo>());
    }

    public Text(List<TextInfo> textList) {
        this.textList = textList;
    }

    public void sort(){
        Collections.sort(textList, new Comparator<TextInfo>() {
            @Override
            public int compare(TextInfo o1, TextInfo o2) {
                if (o1.textCode.equals(o2.textCode)){
                    return o1.text.compareTo(o2.text);
                }
                return o1.getTextCode().compareTo(o2.getTextCode());
            }
        });
    }

    public List<String> toText() {
        sort();
        List<String> list = new ArrayList<>();
        for (int i = 0; i < textList.size(); i++) {
            list.add(textList.get(i).toString());
        }
        return list;
    }

    public List<TextInfo> getTextList() {
        sort();
        return textList;
    }

    public void addText(String text, String textCode){
        textList.add(new TextInfo(text,textCode));
    }

    public static class TextInfo {
        private String text;
        private String textCode;

        public TextInfo(String text, String textCode) {
            this.text = text;
            this.textCode = textCode;
        }

        public String getText() {
            return text;
        }

        public void setText(String text) {
            this.text = text;
        }

        public String getTextCode() {
            return textCode;
        }

        public void setTextCode(String textCode) {
            this.textCode = textCode;
        }

        public String getFirst(){
            return String.valueOf(textCode.charAt(0)).toUpperCase();
        }

        @Override
        public String toString() {
            return getFirst()+":"+text+":"+textCode;
        }
    }
}