caload

Load char from array

Bytecode

Type Description
u1 caload opcode = 0x34 (52)

Stack ..., arrayref, index =>..., value

Description
Retrieves a character from an array of characters and pushes it on the operand stack.

The arrayref must be of type reference and must refer to an array whose components are of type char.

The index must be of type int. Both arrayref and index are popped from the operand stack.

The char value in the component of the array at index is retrieved, zero-extended to an int value, and pushed onto the top of the operand stack.

Example

; This is like the Java code:
;     char x = arr[0];
; where x is local variable 2 and arr is a
; char array in local variable 1
aload_1       ; load local variable 1 onto the stack
iconst_0      ; push the integer 0 onto the stack
caload        ; retrieve the entry
istore_2      ; store the entry in local variable 2
Exceptions
NullPointerException - arrayref is null

ArrayIndexOutOfBoundsException - index is < 0 or >= arrayref.length