javaweb完整项目源码（java项目开发实例）

免注册用户
如果你是在学校，图书馆可以借到很多带光盘的书，里面有源码
2021-03-25 14:25:03

ee
public class test1 { public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println("请输入本月税前工资"); double d = scan.nextDouble(); //税前工资 double sal= d - 3500; // 减去扣除数的 double salary = 0; //初始化工资 if(sal<=1500){ salary = sal*0.03; }else if(sal<=4500){ salary = sal*0.1-105; }else if(sal<=9000){ salary = sal*0.2-555; }else if(sal<=35000){ salary = sal*0.25-1005; }else if(sal<=55000){ salary = sal*0.3-2755; }else if(sal<=80000){ salary = sal*0.35-5505; }else{ salary = sal*0.45-13505; } System.out.println("个人所得税的缴纳额度为："+salary+"元"); } }1. 尽量简化逻辑像钱的多少先用变量存储起来再带入就好了2. 尽量简化代码像输出也只用一句然后带入就好了3. 尽量自己考虑每一点问题都是自己敲代码的过程中产生然后明白的4. 这题是我原题我知道你在哪既然在那了为什么还不努力呢
2021-02-12 14:35:38

郭大帅
Java的项目源码,上传图片浏览用的java代码: <%@pagelanguage="java"import="java.util.*"pageEncoding="UTF-8"%> <% Stringpath=request.getContextPath(); StringbasePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPEHTMLPUBLIC"-//W3C//DTDHTML4.01Transitional//EN"> <html> <head> <basehref="<%=basePath%>"> <title>MyJSP'file.jsp'startingpage</title> <metahttp-equiv="pragma"content="no-cache"> <metahttp-equiv="cache-control"content="no-cache"> <metahttp-equiv="expires"content="0"> <metahttp-equiv="keywords"content="keyword1,keyword2,keyword3"> <metahttp-equiv="description"content="Thisismypage">  <scriptlanguage="javascript"> functioncheckPic(){ varpicPath=document.getElementById("picPath").value; vartype=picPath.substring(picPath.lastIndexOf(".")+1,picPath.length).toLowerCase(); if(type!="jpg"&&type!="bmp"&&type!="gif"&&type!="png"){ alert("请上传正确的图片格式"); returnfalse; } returntrue; } //图片预览 functionPreviewImage(divImage,upload,width,height){ if(checkPic()){ try{ varimgPath; //图片路径 varBrowser_Agent=navigator.userAgent; //判断浏览器的类型 if(Browser_Agent.indexOf("Firefox")!=-1){ //火狐浏览器 imgPath=upload.files[0].getAsDataURL(); document.getElementById(divImage).innerHTML="<imgid='imgPreview'src='"+imgPath+"'width='"+width+"'height='"+height+"'/>"; }else{ //IE浏览器 varPreview=document.getElementById(divImage); Preview.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src=upload.value; Preview.style.width=width; Preview.style.height=height; } }catch(e){ alert("请上传正确的图片格式"); } } } </script> </head> <body> <inputtype="file"id="picPath"name="doc"onChange="PreviewImage('Preview',this,240,180);"/> <divid="Preview"style="filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale);"> </div> </body> </html>
2021-02-12 14:35:38