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Java - create ArrayList of Objects
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In this article, we would like to show you how to create ArrayList of Objects in Java.
Quick solution:
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List<MyObject> object = new ArrayList<>();
In this example, we create ArrayList of User objects
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import java.util.*;2
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public class Example {4
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public static void main(String[] args) {6
//create User objects7
User user1 = new User("Tom", 24);8
User user2 = new User("Kate", 21);9
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// create Array11
List<User> users = new ArrayList<>();12
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// add items to the ArrayLists14
users.add(user1);15
users.add(user2);16
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System.out.println(users);18
}19
}Output:
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[{name='Tom', age=24}, {name='Kate', age=21}]User class:
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public class User {2
private final String name;3
private final int age;4
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public User(String name, int age) {6
this.name = name;7
this.age = age;8
}9
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public String getName() {11
return name;12
}13
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public int getAge() {15
return age;16
}17
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public String toString() {20
return "{" +21
"name='" + name + '\'' +22
", age=" + age +23
"}";24
}25
}Note:
We are able to print users in the Example class, because we have overridden
toString()method in the User class.
