Java开发网 - 关于if(else)语句的问题 (not an "if" problem, but variable declaraction)

Topic: 关于if(else)语句的问题 (not an "if" problem, but variable declaraction)

1.关于if(else)语句的问题 (not an "if" problem, but variable declaraction)

Posted by: 8261669
Posted on: 2006-09-03 20:22

public class test{
public static void main(String[]args){
int a=100;
double b=100.75;
System.out.println("\n a="+a);
System.out.println("\n b="+b);
if(a==0){
System.out.println("\n a的值等于0");}
else{
System.out.println("\n a的值不等于0");}
if(a<b){
System.out.println("\n　a小于b");}
else{
System.out.println("\n a大于b");}
result=(int)a;
if((result%2)== 0){
System.out.println("\n a为偶数");}
else{
System.out.println("\n a为奇数");}
}}
顺便问一下arg和args有什么区别，为什么有时候加Ｓ有时候不加？

（缩略图，点击图片链接看原图）

2.Re:关于if(else)语句的问题 [Re: 8261669]	Copy to clipboard
Posted by: why Posted on: 2006-09-03 21:02 The error message has already located the problem: int result=(int)a;

3.Re:关于if(else)语句的问题 (not an "if" problem, but variable declaraction) [Re: 8261669]	Copy to clipboard
Posted by: 8261669 Posted on: 2006-09-03 21:10 问题已解决，我还想问下arg和args有什么区别.

4.Re:关于if(else)语句的问题 (not an "if" problem, but variable declaraction) [Re: 8261669]	Copy to clipboard
Posted by: why Posted on: 2006-09-04 02:03 8261669 wrote: 问题已解决，我还想问下arg和args有什么区别. 名字不同而已閣下可以把args改為abcdefgh或任何合法的名字

5.Re:关于if(else)语句的问题 (not an "if" problem, but variable declaraction) [Re: 8261669]	Copy to clipboard
Posted by: 8261669 Posted on: 2006-09-04 14:58 哦，原来这样…… 只是一个数组的名字而已…….

6.Re:关于if(else)语句的问题 (not an "if" problem, but variable declaraction) [Re: 8261669]	Copy to clipboard
Posted by: haiming Posted on: 2006-09-04 17:18 arg和args有什么区别我觉得没有那么容易，args是java默认的，如果任意修改，在运行时会出错！！

7.Re:关于if(else)语句的问题 (not an "if" problem, but variable declaraction) [Re: haiming]	Copy to clipboard
Posted by: why Posted on: 2006-09-04 18:05 haiming wrote: arg和args有什么区别我觉得没有那么容易，args是java默认的，如果任意修改，在运行时会出错！！ Where did you learn this nonsense? Have you ever encountered or known anybody that encountered any issues by not using "args"? Have you?

8.Re:关于if(else)语句的问题 (not an "if" problem, but variable declaraction) [Re: 8261669]	Copy to clipboard
Posted by: lwfllr Posted on: 2006-09-04 20:01 会出错吗??~~ 我的怎么没见出问题呢??~~

9.Re:关于if(else)语句的问题 (not an "if" problem, but variable declaraction) [Re: 8261669]	Copy to clipboard
Posted by: fighttodeath Posted on: 2006-09-06 20:35 名字可以随便名啊。. 只要合法就行..