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; --- Copyright Jonathan Meyer 1996. All rights reserved. -----------------
; File: jasmin/examples/HelloWorld.j
; Author: Jonathan Meyer, 10 July 1996
; Purpose: Shows how to define a class that implements an interface
; -------------------------------------------------------------------------
;
; This class implements the examples.AnInterface interface - see
; AnInterface.j
;
.class public examples/Implementor
.super java/lang/Object
.implements examples/AnInterface
;
; standard initializer
;
.method public <init>()V
aload_0
invokenonvirtual java/lang/Object/<init>()V
return
.end method
;
; implement the foo()V method - this is an interface method
;
.method public foo()V
.limit stack 2
; print a simple message
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello Interface"
invokevirtual java/io/PrintStream/println(Ljava/lang/String;)V
; done
return
.end method
.method public static main([Ljava/lang/String;)V
.limit stack 2
; create a new one of me
new examples/Implementor
dup
invokenonvirtual examples/Implementor/<init>()V
; now call my interface method foo()
invokeinterface examples/AnInterface/foo()V 1
return
.end method
|
