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<TD colSpan=2 height=40> 发布日期：2007-9-19
9:11:00 发布者：[<A
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<DIV id=article><FONT face="Times New Roman">关键字
<BR>java,interface <BR>说明
<BR>一气之作，文字功夫太差请大家谅解,希望能对研究COM的朋友带点帮助 <BR>接口功能介绍
<BR>1、‘纯’抽象类的实现（参见JAVA编程思想P/153）
<BR>//Interface1.java接口只负责描述自己的样子“对于实现我的所有的类，看起来都应该象我这个样子。我所有的方法，实现类都必须有！”
<BR>publicinterfaceInterface1{
<BR> publicvoidsetS(Stringstr);
<BR> publicStringgetS();
<BR> publicvoidShowMessage(StringMSG); <BR>}
<BR>=====================================================================
<BR>//ClassItf.java “接口只是一个非常‘纯‘的抽象的东西，你的实现代码都在我这里！”
<BR>publicclassClassItfimplementsInterface1{
<BR> publicStringS=""; <BR> publicClassItf(){
<BR> } <BR> publicvoidShowMessage(StringMSG)
<BR> { <BR>
System.out.print(this.getClass().getName()+"====="+MSG+"====byInterface1n/");
} <BR> publicvoidsetS(Stringstr) <BR> {
<BR> S=str; <BR> }
<BR> publicStringgetS() <BR> { <BR>
returnS; <BR> } <BR>} <BR>2、多重继承的实现（参见JAVA编程思想P/155）
<BR>//Interfase2.java 接口的样子 <BR>publicinterfaceInterface2{
<BR> publicvoidShowMessage2(StringMSG); <BR>} <BR>
<BR>//ClassItf.java加入多重继承后的ClassItf灰底为加入更改、插入行
<BR>publicclassClassItfimplementsInterface1,Interface2{
<BR> publicStringS=""; <BR> publicClassItf(){
<BR> } <BR> publicvoidShowMessage(StringMSG)
<BR> { <BR>
System.out.print(this.getClass().getName()+"====="+MSG+"====byInterface1n/");
<BR> } <BR> publicvoidsetS(Stringstr) <BR> {
<BR> S=str; <BR> }
<BR> publicStringgetS() <BR> { <BR>
returnS; <BR> }
<BR> publicvoidShowMessage2(StringMSG) <BR> {
<BR>
System.out.print(this.getClass().getName()+"====="+MSG+"====byInterface2n/");
<BR> } <BR>} <BR>呵呵！我的多重继承功能在JAVA中有着大量的应用如：
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