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Qué es un arreglo: memoria contigua, tamaño fijo e índices
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java:arrays

Qué es un arreglo: memoria contigua, tamaño fijo e índices

Qué reserva la JVM cuando escribes new int[10]: un objeto en el heap con longitud fija, celdas contiguas, valores por defecto y un índice que empieza en cero. Incluye por qué length es un campo y no un método, y de dónde sale ArrayIndexOutOfBoundsException.


Written by
Andrés Segura
Id

jaa01

Posted

Sep 23, 2026

java
arrays
fundamentals
memory
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Arreglos en Java
java:arrays
Arreglos en Java

Once posts sobre la estructura de datos que aprendiste el primer día y nunca volviste a mirar: memoria, dimensiones, primitivos vs wrappers, la clase Arrays, varargs, covarianza, los límites que dan paso a las colecciones — y un cierre con curiosidades.

Sep 18, 2026
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arrays
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(3)

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About this blog: what it is, how it's organized, and what to expect
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About this blog: what it is, how it's organized, and what to expect

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Aug 17, 2026
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