【Javaでわかる】StringBufferの文字列操作と出力の追跡【基本情報技術者試験・科目B対策】 3 東北イタコ（Tohoku I-ST） 2025年6月3日 21:05 ...

1)String value are stored in dynamic memory (managed heap) and variables of type string keep a reference to an object in heap. 2)The character sequence stored in string variable of class are immutable ...

As we know in Java String is immutable means we cannot reassign a new value to the same string object. That's why in Java to provide mutability we use either StringBuffer or StringBuilder.