Java ArrayList clone() 方法

示例

创建列表副本:

import java.util.ArrayList;

public class Main {
  public static void main(String[] args) {
    ArrayList<String> cars = new ArrayList<String>();
    cars.add("Volvo");
    cars.add("BMW");
    cars.add("Ford");
    cars.add("Mazda");
    
    ArrayList cars2 = (ArrayList)cars.clone();
    cars2.set(0, "Toyota");
    
    System.out.println(cars);
    System.out.println(cars2);
  }
}

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