Java 程序按不区分大小写顺序对列表进行排序


假设你的列表包含以下元素 -

P, W, g, K, H, t, E

因此,不区分大小写顺序意味着不考虑大小写。输出将是 -

E, g, H, K, P, t, W

以下是我们的数组 -

String[] arr = new String[] { "P", "W", "g", "K", "H", "t", "E" };

将上述数组转换为列表 -

List<String>list = Arrays.asList(arr);

现在按照大小写不敏感顺序对以上列表进行排序 -

Collections.sort(list, String.CASE_INSENSITIVE_ORDER);

示例

 在线演示

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public class Demo {
   public static void main(String[] argv) throws Exception {
      String[] arr = new String[] { "P", "W", "g", "K", "H", "t", "E" };
      List<String>list = Arrays.asList(arr);
      System.out.println("List = "+list);
      Collections.sort(list);
      System.out.println("Case Sensitive Sort = "+list);
      Collections.sort(list, String.CASE_INSENSITIVE_ORDER);
      System.out.println("Case Insensitive Sort = "+list);
   }
}

输出

List = [P, W, g, K, H, t, E]
Case Sensitive Sort = [E, H, K, P, W, g, t]
Case Insensitive Sort = [E, g, H, K, P, t, W]

更新于: 30-7-2019

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