java list 中文排序

最新推荐文章于 2024-06-17 14:00:04 发布

原创最新推荐文章于 2024-06-17 14:00:04 发布 · 250 阅读

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本文提供了一个使用Java实现的中文字符串排序示例程序。通过Collator类实现了对中国国家名称的正确排序，展示了如何自定义比较器Comparator以适配特定需求。

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import java.text.Collator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;

public class ChineseCharacterSortDemo {
	public static void main(String args[]) {
		ArrayList list = new ArrayList();
		list.add(new Country(86, "中国"));
		list.add(new Country(21, "加拿大"));
		list.add(new Country(1, "美国"));
		list.add(new Country(110, "阿富汗"));
		Comparator cmp = new ChinsesCharComp();
		Collections.sort(list, cmp);
		Iterator iter = list.iterator();
		while (iter.hasNext()) {
			Country s1 = (Country) iter.next();
			System.out.println(s1.getCode() + "----" + s1.getName());
		}
	}
}

class ChinsesCharComp implements Comparator {

	public int compare(Object o1, Object o2) {
		Country c1 = (Country) o1;
		Country c2 = (Country) o2;
		Collator myCollator = Collator.getInstance(java.util.Locale.CHINA);
		if (myCollator.compare(c1.getName(), c2.getName()) < 0)
			return -1;
		else if (myCollator.compare(c1.getName(), c2.getName()) > 0)
			return 1;
		else
			return 0;
	}
}

class Country {

	private long code;

	private String name;

	public long getCode() {
		return code;
	}

	public void setCode(long code) {
		this.code = code;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Country() {

	}

	public Country(long code, String name) {
		this.code = code;
		this.name = name;
	}

}