12.

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arraylength

get length of array

Jasmin Syntax

     arraylength 

Stack

Before	After
arrayref	length
...	...

Description

Removes arrayref (a reference to an array) from the stack and replaces it with the length of the array (an int). For multi-dimensional arrays, the length of the first dimension is returned.

Exceptions

NullPointerException - arrayref is null.

Bytecode

Type	Description
u1	arraylength opcode = 0xBE(190)

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Java Virtual Machine, by Jon Meyer and Troy Downing, O'Reilly Associates