osm calculator

The code is as follows:Import Java.awt.*;import javax.swing.*;p ublic class Gridframe extends JFrame {//define string array, assign a value to the display text of the button string str[] = {"MC", "MR", "MS", "m+", "←", "C", "%", "π", "7", "8", "9", "/", "4", "5", "6", "*", "1", "2", "3", "-", "0", ".", "=", "+"};p UBL IC Gridframe () {//define panel and set to Grid layout, 4 rows 4 columns, component horizontal, vertical spacing is 7JPanel pan = new JPanel ();p an.setlayout (New GridLayout (6, 4

I used to look at PHP when I wanted to do this, but there has been no time, this time finally took a sneak into the code more than the amount of project.First of all, the document structure, all in one folder is good, my example is the following.Start by entering the index.php file.Doing a couple of things.1. The number of passes that can be obtained by $get_[the "action" method and the $_request ["action"] method is rect, triangle or circle.2. The two classes of form.class.php and result.class.

This is my copy of a calculator, feel the process is relatively simple, so share. 1. Create a new file, find a material to put in a grain of wood 2. New layer, fill a black radial gradient 3. Draw a rectangle with rounded corners. The final painting here has a shape filler tool to draw, the right amount of graphics size adjustment is not easy to distort, but also suitable for Various sizes. Easy to modify. Fill style specific

defMUL_DIV (exp):#Calculate multiplication whileTrue:ret= Re.search ('[\d\.] +[\*\/]-? [\d\.] +', exp)ifRet:atom_exp=Ret.group () Res=atom_cal (ATOM_EXP) exp=exp.replace (Atom_exp, res)Else: returnFOMAT_EXP (exp)defFOMAT_EXP (exp):#after calculating the multiplication, the unified symbolExp=exp.replace ('--','+') Exp=exp.replace ('-+','-') Exp=exp.replace ('++','+') Exp=exp.replace ('+-','-') returnadd_sub (exp)defADD_SUB (exp):#calculate add and SubtractRet=re.findall ('[\-\+]

(atom_exp,res)Else: returnExpdefadd_sub (exp): RET= Re.findall ("[+-]?\d+ (?: \. \d+)?", exp)#Take out the numbers and symbols in front of the numbers FindAll returns a list to find all itemsExp_sum =0 forIinchRet:exp_sum= Exp_sum + float (i)#The string is taken out. returnExp_sumdefCAL (exp): Exp=MUL_DIV (exp) Exp=Format (exp) exp_sum=add_sub (exp)returnExp_sumdefMain (exp): Exp= Exp.replace (" ","") whileTrue:ret= Re.search ("\([^()]+\)", exp)ifRet:inner_bracket=Ret.group ()

This JSP page is designed to implement the ability to submit and receive data on the same page .There are a lot of shortcomings in this small program, I hope you will criticize.The implementation results are as follows:How to implement a simple calculator with JSP (c)

.]*] \) ', S_MATCH_STR). Group (1) s = S.replace (S_match_str, S_match_str_match) print (s) Else:print ("Call processing%s"%s_match_str) S_match_str_str=re.search (' \ ([+\-*/0-9.] *) \) ', s). Group (1)Ret=handler_expression (s_match_str_str) s = s.replace (S_match_str, str (ret)) print (s) Else:flag=false return s# no_braces_result=hadler_braces (' ( -1+ (2-5* ( -1)) * (2-5)) # Result=handler_expressi On (no_braces_result) # print (result) if __name__ = = ' __main__ ': While tru

　　JS Simple Calculator

1. Environment Construction Link: http://www.jianshu.com/p/094928ac0b732. qt Create CanvasNow you need to complete the adder, two numbers A and B are added, and the numbers A and B are entered by digital. Drag the element to complete the interface, such as. On the left there is a simple addition input and output display box, click on the calculation button below to start the calculation, to the right there is an output historical calculation of the page. You can see the name of each dragged elem

jquery Implementation Calculator

After Baidu, see the same shoes hint to modify the \phpstudy\apache2\conf\ in the httpd.conf file, the code is as follows Copy Code code as follows: ServerAdmin webmaster@163.com DocumentRoot "D:\www" ServerName ymywz.com Options Indexes FollowSymLinks AllowOverride All Order Allow,deny Allow from all Note: As a result of the code conflict problem, please change the above double title number to a single title number When you restart Apache after adding the

Import Java.util.Arrays; Import Java.util.Scanner; Simple calculator/infix expression suffix expression, derived results for reverse Polish number output//e.g. input: (11+2.2) *3.1+ (30*45)-((1.1+23) *3.3)/5.2//Convert to suffix expression: 11 2.2 + 3.1 * 30 45 * + 1.1 23 + 3.3 * 5.2////Output Result: 1375.6257692307693 public class Turnrpn {public static void main (string[] args) { Char[] s = GetChar (); String expression = getexpression (

, 0, WX. EXPAND), (button0, 0, WX. EXPAND), (Buttondot, 0, WX. EXPAND), (buttonequ, 0, WX. EXPAND), (buttonplus, 0, WX. EXPAND)] Buttoncls.bind (WX. Evt_button,self. ONBUTTONCLS) Buttonbck.bind (WX. Evt_button,self. ONBUTTONBCK) Buttonclose.bind (WX. Evt_button,self. Onbuttonclickclose) Button0. Bind (WX. Evt_button,self. ONBUTTONCLICK0) button1. Bind (WX. Evt_button,self. ONBUTTONCLICK1) button2. Bind (WX. Evt_button,self. OnButtonClick2) Button3. Bind (WX. Evt_button,self. ONBUTTONCLICK3) Butt

I. Overview of issues Using C language to implement a simple calculator, can be used to achieve the function of subtraction noun Explanation: function pointer: A pointer that is used to point to a function Array of function pointers: an array containing multiple function pointers callback function: A function, if the parameter has a function pointer, then this function is the callback function two, problem analysis This problem can be implemented wit

This article illustrates a method of implementing a simple calculator based on JSP. Share to everyone for your reference. The implementation methods are as follows: index.jsp Copy Code code as follows: String path = Request.getcontextpath (); String basepath = request.getscheme () + "://" +request.getservername () + ":" +request.getserverport () +path+ "/"; %> Result.jsp for displaying results Copy Code code as follows:

Personal Income Tax Calculator cellpadding=4 cellspacing=1 bgcolor= "#D9D9D9" style= "FONT-SIZE:9PT; Font-family: Song Body ">Style= "FONT-SIZE:9PT; font-family: XXFarEastFont-arial > Please enter your monthly income: Style= "FONT-SIZE:9PT; Font-family: Song Body "> Yuan ">Style= "FONT-SIZE:9PT; Font-family: Song Body "> Yuan 1000) nbsp;nbsp;nbsp;nbsp;>

JS implementation of the calculator, the following code: Style= "Background-color: #C0C0C0; height:291px; " >

JS Calculator code: [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] Description JavaScript eval () function Definitions and usage The eval () function computes a string and executes the JavaScript code in it. return value The value, if any, obtained by calculating the string. Description The method accepts only the original string as a parameter, and if the string argument is not the ori

Copy Code code as follows: PS: Here again for you to recommend two online calculator this site, are implemented with JS, and powerful, I believe that in-depth understanding of JavaScript math and web design will help: Online Standard calculator:http://tools.jb51.net/jisuanqi/jsq Online Science calculator:Http://tools.jb51.net/jisuanqi/jsqkexue

This paper illustrates the implementation of JS simple calculator. Share to everyone for your reference. The implementation methods are as follows: Copy Code code as follows: I hope this article will help you with your JavaScript programming.