Topic: 求众位高人点拨,一直想不出应该用什么方法解决问题 |
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1.求众位高人点拨,一直想不出应该用什么方法解决问题 | Copy to clipboard |
Posted by: abcjavac Posted on: 2005-12-02 20:43 问题: 写一个类 包含一个方法 public String turnAround (String string),这个方法可以把一串字母顺序颠倒输出 例如:abc -> cba... 后用一个类呼叫一个main方法把三个不同的字串输出到屏幕上 Shuchu { Shuchu ( ) { } public String turnAround (String string){ ..........???// 如何实现这个方法的功能, 在API里有现成的类,还是自己写??? } } 高人帮我! 先谢啦! |
2.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: abcjavac Posted on: 2005-12-02 22:01 public class TurnTest { private String abc; //construktor TurnTest (String abc){ this.abc = abc; } public String turnAround() { StringBuffer tur = new StringBuffer(); tur.toString(); // 这个方法不行可用哪个好呢? return abc; } } |
3.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: why Posted on: 2005-12-02 22:36 abcjavac wrote: check StringBuffer API and you'll find http://java.sun.com/j2se/1.4.2/docs/api/java/lang/StringBuffer.html#reverse() |
4.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: abcjavac Posted on: 2005-12-02 23:07 谢谢! 看来是应该用reverse方法了. 还有个问题,我的main方法也有问题,我不知道怎么改才好,请给看看 public class TestMain { public static void main (String[] args){ TurnTest a = new TurnTest("Baum"); TurnTest b = new TurnTest("Auto"); TurnTest c = new TurnTest("Fussball"); ------------------------------------------------------ a.turnAround(); //这个地方有问题, 难倒是参数位置不对? b.turnAround(); c.turnAround(); ------------------------------------------------------ } } |
5.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: abcjavac Posted on: 2005-12-02 23:12 另外说说我的问题,我是个初学者,我看书时很多东西都觉得明白了,可到了实际写程序时又会觉得不知所错了,很多结构上的细节,就是吃不准,不知道如何开始尤其是实际的当中,不知是不是别人也有相同的问题,有时候很打击自己的信心的. |
6.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: why Posted on: 2005-12-03 21:03 abcjavac wrote: 唉--我們怎會知道閣下那TurnTest改成甚麼咚咚? "这个地方有问题"...有甚麼問題? 閣下這様沒頭沒腦地問,別人怎麼回應? 請好好讀讀 [加贴须知] |
7.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: ranchgirl Posted on: 2005-12-04 00:58 I usually don't response the 沒頭沒腦 问题. Sorry, if the person asking question doesn't want to spend his/her time to tell you what the question is, why should I try to read his/her mind? Thanks! |
8.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: why Posted on: 2005-12-04 04:33 package net.cjsdn.why; public class TurnMain { public static void main (String[] args){ TurnTest turnTest = new TurnTest(); System.out.println(turnTest.turnAround("Baum")); System.out.println(turnTest.turnAround("Auto")); } } class TurnTest { public String turnAround(String in) { StringBuffer sb = new StringBuffer(in); return sb.reverse().toString(); } } |
9.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: gongshi] | Copy to clipboard |
Posted by: abcjavac Posted on: 2005-12-04 14:13 gongshi wrote: 老兄先消消气,我当然花了时间,如果在书里都能看懂了,我也就不会再到这里来问什么问题了,不是吗? 我是确实被困难所困,才来此寻求帮助的,而且也把所有的东西都贴这里了,既然我注册了这个论坛,我也会,尽我所能去帮助其他需要我帮助的人,这就是论坛的职能啊, 哪成想刚来问了两个问题,就给你们二位管事一通奚落, 责备,顺代的还嘲笑了一通我的中文.WHY兄还算回答了问题,可尊驾呢?气势汹汹在中文论坛上用英语加点中文词阻止别人回答我的问题, 您即使就算是 IT 的教授也不至于这么牛吧???谁不是从开始过来的? 最后再问,二位代表的是此论坛的风格吗?还是这就是此坛的规矩-新人都得过这关(先让你们老人挖苦,讽刺,嘲笑一番)?? 最后再谢谢WHY兄的回答! |
10.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: ranchgirl Posted on: 2005-12-04 17:03 I usually don't response any 沒頭沒腦 问题. Sorry, if the person who is asking question doesn't want to spend his/her time to tell us what the question is, why should I try to read his/her mind? This was my preference. This is still my preference now. This will be my preference in the future. I don't represent anybody or any other people's style on the forum. This is just my choice... What is wrong with it?????? Thanks! |
11.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: why Posted on: 2005-12-04 17:14 abcjavac wrote: 閣下這麼就算"把所有的东西都贴这里"?開玩笑嗎? 我們怎會知道閣下把那TurnTest改成甚麼咚咚? "这个地方有问题"...有甚麼問題? 唉-- 指出閣下不是之處,不是嘲笑或奚落 請先檢討一下自己有沒有好好地問一個問題 認真一點,試從別人的角度想想吧 |
12.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: acl2005 Posted on: 2005-12-06 11:24 abcjavac : 我与你有同样的感觉,当你看书的时候觉得还是明白了。但是离开书以后觉得脑袋好象空白了不少啊!不知道从何下手。这样的感觉是不是刚接触的人都有呢,还是少数人有啊!有时很郁闷的 |
13.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: acl2005] | Copy to clipboard |
Posted by: ranchgirl Posted on: 2005-12-06 22:47 acl2005 wrote: Hands-on!!!! Get your hands dirty by writing code to experiment what you are learning! That is the way to go! Thanks! |
14.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: ftang Posted on: 2005-12-09 07:07 hehe...I give you guys (abcjavac, acl2005) a good start: Think about to rewrite the reverse() method of StringBuffer class, no Collection Framework allowed, you can use Array... there are thousands way but we want simplest way.... |
15.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: javahum Posted on: 2005-12-11 16:27 自己写了一个,大家补充:
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16.Re:求众位高人点拨,一直想不出应该用什么方法解决问题 [Re: abcjavac] | Copy to clipboard |
Posted by: hamlet Posted on: 2005-12-11 22:04 好想法!!! |
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