Java 程序将 ArrayList 作为函数参数传递

在本文中，我们将了解如何将 ArrayList 作为函数参数传递。ArrayList 类是一种可调整大小的数组，可以在 java.util 包中找到它。Java 中的内置数组和 ArrayList 之间存在一个区别，即数组的大小无法修改。

以下对其做出了演示，内容如下 −

假设我们的输入是 −

Run the program

预期的输出为 −

The list is defined as:
Java Python Scala Mysql Redshift

算法

Step 1 - START
Step 2 - Declare namely
Step 3 - Define the values.
Step 4 - Create an ArrayList, and iterate over it, and display it.
Step 5 - In the main method, create the ArrayList, and add elements to it using the ‘add’ method.
Step 6 - Display this on the console.
Step 7 - Stop

示例 1

在此，我们迭代一个字符串数组列表。

Open Compiler
import java.util.ArrayList;
public class Demo {
   public static void print(ArrayList<String> input_list) {
      System.out.print("\nThe list is defined as:\n ");
      for(String language : input_list) {
         System.out.print(language + " ");
      }
   }
   public static void main(String[] args) {
      System.out.println("The required packages have been imported");
      ArrayList<String> input_list = new ArrayList<>();
      input_list.add("Java");
      input_list.add("Python");
      input_list.add("Scala");
      input_list.add("Mysql");
      input_list.add("Redshift");
      print(input_list);
   }
}

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输出

The required packages have been imported

The list is defined as:
Java Python Scala Mysql Redshift

示例 2

在此，我们迭代一个整型数组列表。

Open Compiler
import java.util.ArrayList;
public class Demo {
   public static void print(ArrayList<Integer> input_list) {
      System.out.print("\nThe list is defined as:\n ");
      for(Integer elements : input_list) {
         System.out.print(elements + " ");
      }
   }
   public static void main(String[] args) {
      System.out.println("The required packages have been imported");
      ArrayList<Integer> input_list = new ArrayList<>();
      input_list.add(500);
      input_list.add(600);
      input_list.add(700);
      input_list.add(800);
      input_list.add(950);
      print(input_list);
   }
}

输出

The required packages have been imported
The list is defined as:
500 600 700 800 950

更新日期：2022-3-30

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