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Java解説 20250721

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Last updated at Posted at 2025-07-20

javaの基本データ型ではないもの(参照型)

・String (文字列型)
・Boolean (基本型booleanのラッパークラス)

変数宣言

・文字列を扱う変数の宣言例

String name;       // 変数宣言
name = "Taro";     // 宣言した変数に値を代入する
String text = "";  // 変数宣言と同時に値を代入する

基本データ型で整数を扱うもの

・byte
・short
・int
・long


オラクル認定資格教科書 Javaプログラマ Bronze SE(試験番号1Z0-818)

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