Определить тип переменной в Java

Contents
Introduction
Пример
В других языках
Related Articles

Introduction

Оператор instanceof помогает определить принадлежит ли объект определённому типу

Пример

Вывести на экран тип объекта

public class Main { public static void main(String[] args) { int varD = 1.1; test(varD); // Преобразуем double в int test(int(varD)); } public static void test(Object value) { if (value instanceof Integer) { System.out.println("Это Integer"); } else if (value instanceof String) { System.out.println("Это String"); } else if (value instanceof Float) { System.out.println("Это Float"); } else if (value instanceof Double) { System.out.println("Это Double"); } } }

Это Double Это Integer

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В других языках

Article author: Andrei Olegovich

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