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Using Spring Boot 3.1.0 (and therefore Spring Framework 6.0.9 and Thymeleaf 3.1.1), I'm trying to use an expression like list.size gt 1 in a template. I get this error: ...

java.util.List は Java ではもっとも基本的なコンテナ型の一種です。 同じ型の要素を複数保持することができます。 Java には基本的な型として配列もありますが、サイズ変更が不可能ですので用途が限られます。一般的なアプリケーションでは list を利用します。

Have you ever wondered why the java.util.Collections class includes various “empty” class methods, which return immutable empty collections and immutable empty iterators? This post answers this ...

Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions. Programmers frequently need to ...