對映到將字串值新增到 Java 中每個元素


假設我們的 String List 如下所示 −

List list = Arrays.asList("Football", "Basketball", "Hockey", "Cricket","Fencing");

現在對映到每個元素以新增字串 −

List str = list.stream().map(name -> "Sports " + name + " Outdoor")
   .collect(Collectors.toList());

上面,我們已經向每個元素添加了“Sports”和“Outdoor”字串。

以下是對映和在 Java 中向每個元素新增字串值的一個示例 −

示例

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
public class Demo {
   public static void main(String[] args) {
      List list = Arrays.asList("Football", "Basketball", "Hockey", "Cricket","Fencing");
      List str = list.stream().map(name -> "Sports " + name + " Outdoor")
      .collect(Collectors.toList());
      System.out.println(str);
   }
}

輸出

[Sports Football Outdoor, Sports Basketball Outdoor, Sports Hockey Outdoor, Sports Cricket Outdoor, Sports Fencing Outdoor]

更新時間: 30-Jul-2019

707 次瀏覽

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