[java] Forum Topics

Hello Sir, I am developing social networking website using jsp and servlet . I have created login page using mysql but now i am not able to make posting status and commenting system on that post.Please provide me solution. thankyou aayush

I've been trying to have a button (Arduino) change the fill color of an ellipse in Processing 3. I thought an if statement like `if(button == 0){ if(fillValue == rgb){ fill(0,0,0);}`or something more or less. So if some one has the awnser please help.

Hello to all! I have an order of a simple desktop pos which i will develop in java. Actually i have to develop this pos for a person who is owner of a hardware shop(nuts,bolts,nails, hammers and screw drivers etc.). He needs features as follows: 1-Automate his sales transaction i-e …

So i've made a Node class : public class IntNode { private int _value; private IntNode _next; public IntNode(int v, IntNode n) { _value = v; _next = n; } public int getValue() { return _value; } public IntNode getNext() { return _next; } public void setValue(int v) { _value …

Modify the Week Two Java non-GUI console application using NetBeans IDE (or jGrasp) to meet these additional and changed business requirements: • The company has recently changed its total annual compensation policy to improve sales. • A salesperson will continue to earn a fixed salary of $35,000.00. The current sales …

Hi Everyone, i am a final year computer science student.I was thinking of building a secure online voting system for my university's student union elections process. I wondering if anyone has an idea on how i can go about implementing the system.I would really appreciate any help you give to …

please , tell me how i should start making a simple search engine.......what are the things i will need to learn.And how should i proceed?

Hi , I want to display a calendar in frontend and then I want to retreive the date selected by user in another java file within same project. Please help how can i acheive this Regards, Shivali

Hello. In my editor shows that there is a syxtax error in this function. Does anyone knows whats the syntax error? !function(i,t){var e=function(i,t,e){var s;return function(){function n(){e||i.apply(o,r),s=null}var o=this,r=arguments;s?clearTimeout(s):e&&i.apply(o,r),s=setTimeout(n,t||150)}};jQuery.fn[t]=function(i){return i?this.bind("resize",e(i)):this.trigger(t)}}(jQuery,"smartresize"),function(i){i.Gal=function(t,e){this.element=i(e),this._init(t)},i.Gal.settings={selector:".item",width:225,gutter:20,animate:!1,animationOptions:{speed:200,duration:300,effect:"fadeInOnAppear",queue:!0,complete:function(){}}},i.Gal.prototype={_init:function(t){var e=this;this.name=this._setName(5),this.gridArr=[],this.gridArrAppend=[],this.gridArrPrepend=[],this.setArr=!1,this.setGrid=!1,this.setOptions,this.cols=0,this.itemCount=0,this.prependCount=0,this.isPrepending=!1,this.appendCount=0,this.resetCount=!0,this.ifCallback=!0,this.box=this.element,this.options=i.extend(!0,{},i.Gal.settings,t),this.gridArr=i.makeArray(this.box.find(this.options.selector)),this.isResizing=!1,this.w=0,this.boxArr=[],this._setCols(),this._renderGrid("append"),i(this.box).addClass("gridalicious"),i(window).smartresize(function(){e.resize()})},_setName:function(i,t){return t=t?t:"",i?this._setName(--i,"0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz".charAt(Math.floor(60*Math.random()))+t):t},_setCols:function(){this.cols=Math.floor(this.box.width()/this.options.width),this.cols<1&&(this.cols=1),diff=(this.box.width()-this.cols*this.options.width-this.options.gutter)/this.cols,w=(this.options.width+diff)/this.box.width()*100,this.w=w;for(var t=0;t<this.cols;t++){var e=i("<div></div>").addClass("galcolumn").attr("id","item"+t+this.name).css({width:w+"%",paddingLeft:this.options.gutter,paddingBottom:this.options.gutter,"float":"left","-webkit-box-sizing":"border-box","-moz-box-sizing":"border-box","-o-box-sizing":"border-box","box-sizing":"border-box"});this.box.append(e)}this.box.find(i("#clear"+this.name)).remove();var s=i("<div></div>").css({clear:"both",height:"0",width:"0",display:"block"}).attr("id","clear"+this.name);this.box.append(s)},_renderGrid:function(t,e,s,n){var o=[],r=[],a=0,h=(this.prependCount,this.appendCount),d=this.options.gutter,p=this.cols,c=this.name;i(".galcolumn").width();e?(r=e,"append"==t&&(h+=s,a=this.appendCount),"prepend"==t&&(this.isPrepending=!0,a=Math.round(s%p),0>=a&&(a=p)),"renderAfterPrepend"==t&&(h+=s,a=s)):(r=this.gridArr,h=i(this.gridArr).size()),i.each(r,function(e,s){var n=i(s),r="100%";n.hasClass("not-responsive")&&(r="auto"),n.css({marginBottom:d,zoom:"1",filter:"alpha(opacity=0)",opacity:"0"}).find("img, object, embed, iframe").css({width:r,height:"auto",display:"block","margin-left":"auto","margin-right":"auto"}),"prepend"==t?(a--,i("#item"+a+c).prepend(n),o.push(n),0==a&&(a=p)):(i("#item"+a+c).append(n),o.push(n),a++,a>=p&&(a=0),h>=p&&(h-=p))}),this.appendCount=h,this.itemCount=a,"append"==t||"prepend"==t?("prepend"==t&&this._updateAfterPrepend(this.gridArr,r),this._renderItem(o),this.isPrepending=!1):this._renderItem(this.gridArr)},_collectItems:function(){var t=[];return i(this.box).find(this.options.selector).each(function(e){t.push(i(this))}),t},_renderItem:function(t){var e=this.options.animationOptions.speed,s=this.options.animationOptions.effect,n=this.options.animationOptions.duration,o=this.options.animationOptions.queue,r=this.options.animate,a=this.options.animationOptions.complete,h=0,d=0;r!==!0||this.isResizing?(i.each(t,function(t,e){i(e).css({opacity:"1",filter:"alpha(opacity=1)"})}),this.ifCallback&&a.call(t)):(o===!0&&"fadeInOnAppear"==s?(this.isPrepending&&t.reverse(),i.each(t,function(s,o){setTimeout(function(){i(o).animate({opacity:"1.0"},n),d++,d==t.length&&a.call(void 0,t)},h*e),h++})):o===!1&&"fadeInOnAppear"==s&&(this.isPrepending&&t.reverse(),i.each(t,function(e,s){i(s).animate({opacity:"1.0"},n),d++,d==t.length&&this.ifCallback&&a.call(void 0,t)})),o!==!0||s||i.each(t,function(e,s){i(s).css({opacity:"1",filter:"alpha(opacity=1)"}),d++,d==t.length&&this.ifCallback&&a.call(void 0,t)}))},_updateAfterPrepend:function(t,e){var s=this.gridArr;i.each(e,function(i,t){s.unshift(t)}),this.gridArr=s},resize:function(){this.box.find(i(".galcolumn")).remove(),this._setCols(),this.ifCallback=!1,this.isResizing=!0,this._renderGrid("append"),this.ifCallback=!0,this.isResizing=!1},append:function(t){var e=this.gridArr,s=this.gridArrPrepend;i.each(t,function(i,t){e.push(t),s.push(t)}),this._renderGrid("append",t,i(t).size())},prepend:function(t){this.ifCallback=!1,this._renderGrid("prepend",t,i(t).size()),this.ifCallback=!0}},i.fn.gridalicious=function(t,e){return"string"==typeof t?this.each(function(){var s=i.data(this,"gridalicious");s[t].apply(s,[e])}):this.each(function(){i.data(this,"gridalicious",new i.Gal(t,this))}),this}}(jQuery);

is there anyway to improve my code's time complexity or memory's complexity ? (without using advanced methods - im a beginner) its a method that gets an array filled with zeroes and other numbers, and it changes each number(which is not a zero) to the distance of the closest zero …

i tend to make a method which compares between 2 strings, str1 and str2 and should return true in the terms: -every character in str1 must show up in str 2 at least once or more and in the same order -str2 must be the same length or longer than …

I wrote the program up, but I'm getting all types of errors. Which I'm new to this whole Java Application class. I keep getting errors : Please help. 1. employee is not defined. 2. NewSalesPerson is not defined. 3. UtilnumFormat is not defined. 4. Variable declaration not allowed here. 5. …

Part 2 to Salesperson Java Application, still new to this. class SalesPerson { /** * Fixed Salary */ final double fixedSalary = 35000; /** * Current Commission Rate */ public double curCommissionRate = 0.15; /** * Accrued Commission */ public double curCommission = 0; /** * Total Compensation */ public …

Just as the title says im trying to get the sum of a string's characters values, but in a recursive way and without for loops i tried to do this, but it says that a return type required? private stringSum(String s, int i) { if (i==a.length) return 0; return ((int)s.charAt(i)+ …

Moderator edit> Original text deleted Original post was just a copy of a homework brief. No effort shown, not even a question. Will everybody PLEASE read this advice before posting https://www.daniweb.com/programming/threads/435023/read-this-before-posting-a-question

Hi, I am creating a program that when you print an author, you must show all the information of all the books that the author has written. Add a new attribute in the Author class that will be "BooksWriting: List (Book)". I have expanded the program so that it also …

hi everybody I am currently creating a simulation of a pizza ordering system in object oriented program. I have some question. the instruction and guideline is long but I will try and cut it down a lot. the instruction is to create a program that simulate a pizza restaurant using …

Good Day Lets say i have a array of integers.... -always differs in length I need to know all the possibilities the numbers in the string have to add up to a certain number. let say 5; and my array contains 1,3,4,3,5,8,2,1; than the possibilites would be.... (3,2)(4,1)(3,1,1) But i …

source code for android games

My intention is to delete file from folder But Here in above script is not working properly can any one please suggest me about this function deleteFile() { var myObject; myObject = new ActiveXObject("Scripting.FileSystemObject"); myObject.DeleteFile("D:\\WEBSITE_FILES\\docs\\OTR\\"+db_unicid+"\\passportImage.jpg"); return true; } <input type='Button' value='Click to Delete File' onClick='return deleteFile()'>

i want retrive a multiple images from the database in java. pls help me.

Hey guys! Working on a project that I am stuck on at the moment! Any help would be really appreciated! I need to get my JLabel to display a count of the three differnet shapes my RandomShapesGenerator program. I know I need to use a String.format but just dont know …

public static void sentencesChecker(String essay) { int count = 0; int countcap = 0; int i , j; for ( i = 0; i < essay.length(); i++) { if (essay.charAt(i) == '.') { count++; } for ( char e= 'A'; e<='Z';e++) { if (essay.charAt(i)==e){ countcap++; } } } System.out.print("\n\t\t" + …

Trying to get just the search results (inside and outside the search box). Everything else on the page, which is NOT involved with the search box and its results, should not print. Tried many types of @media and css but can't seem to find the answer. I may be doing …

I was doing my login access with ms access database (accdb), supposed can work but after i upgrade to java 8, it no longer able to support odbc and i was struggled to solve this problem, and it gave me the ClassNotFoundException list of library i have in my netbean …

i need code (c++) +explanation of lexical analysis javacc

I am writing a java program. One of the functions of my program is to count all the uppercase letters in a paragraph of text I import. I am not sure how to set this up. Is it something like, isUpperCase.(char) Any help would be great Thanks

Hey guys,I have a problem solving the 7.2 exercise in the book Think Java v6.1.0. Any help please?

hi everyone can anyone help me this project ? ******************************************** The existing system, normally in a company, employees enter the office at different times. To administer the timings of the employees, we write the entry time and exit time of the employees in a register, which had some problems such …

i use an image ??? application. I browse trough its folder but can not find a single image file yet. There are plenty Java serialization data file, in its folder. i guess its store image on that file. any ideas to view ? (file attached) thank you verymuch

The ArrayList class extends AbstractList and implements the List interface. ArrayList supports dynamic arrays that can grow as needed. Standard Java arrays are of a fixed length.

I would like to know any advice for creating a program that will read in a *.csv file and load the data into a 24 x 24 array for further processing. I am including a total of 48 records, so that you can see how the data looks and what …

Hello :) This is my first post. I haven't done a Java type program in a while (2-3 years). I am trying to write a simple program which displays a window with 5 buttons. When you click either the first or second button it should open another window within which …

i want source code for uploading ,displaying and downloading image in jsp

Hi team, Please show me how I can encrypt password and padd it with RSA algorithm. Show in java. Assume key is given.

I have a form in Acrobat DC with a data matrix barcode - when i scan the barcode it looks like this 777777799999MS2334WASHER912/15/16100YesYes3Q127/18 i need a tab between so when i scan them in excel they will fill in cells across a row. The code looks like this - any …

I have a validateRequiredField(e) function to validate empty field and a validateExistingEmail() to validate an email has existed in my database. I am able to see both alert("Field" + i + "is Required"); when the fields are empty and alert("This email has been registered"); when the email existed in my …

I need to validate a name field to validate if the name field is empty and if the name existed in my database. If it passes both the validation(the user has input a name that is not existed in my database), then the form will be submitted. The problem is …

I am writing a java program that needs to execute shell commands, so I wrote a function that would take the command to execute as a string (ie: "mkdir ~/Folder1") and execute that command with the shell. Here is the function: try { Runtime run = Runtime.getRuntime(); Process pr = …

what does /n mean?

I'm getting a mising **).** error with a condition if (i=0;i<5;i++) ?

i have create desktop based application using java language. now i want to give it to my client so for that i want to create executable file for java prgram so how can i create .exe file from java program?

my activity is load a grid view from xml file and the controls from other xml file public class ResultActivity extends AppCompatActivity { GridView gridview; ArrayList<String> arrayList; String ip, db, un, passwords; Connection connect; PreparedStatement stmt; ResultSet rs; Button TButton; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.gridviews); TButton = …

Is there a way to develop a GUI which has graph data structure at the backend so that if we want to have information about a particular node or edge, we just tap its corresponding GUI representation and the app gives us the required info?

Hi, as I was told that my code doesn’t scale well at all, I thought perhaps I’d try to get a better understanding of interfaces/abstract classes and classes and the relationship between them. I don’t want at this stage work on a big separate project as I've already got plenty …

Help! I want to create a java program that finds the highest even integer among the values entered by the user. Stop asking values when a value less than 1 have been entered. If no even integer is entered, display "No Even Integer" Here is the sample output that I …

The problem asks: Write a program that prompts the user to enter an integer from 1 to 15 and displays a pyramid, as shown in the following sample run: Enter number of lines: 7 [CODE=text]......1 .....212 ....32123 ...4321234 ..543212345 .65432123456 7654321234567[/CODE] (except the example given shows spaces in between the …

I have a Combo box/Dropdown and when a user clicks an option I want the combo box to set the text onto a jTextField. For example: if(carsJComboBox.getSelectedIndex() == 0) { currentCarsJTextField.setText("250 Million"); } if(carsJComboBox.getSelectedIndex() == 1) { currentCarsJTextField.setText("500 Million"); } The problem is that when the program runs, it automatically …

...I want to start Android app development. Was wondering anyone of you could suggest me the best resources to learn from. I know java but have no idea about Android app development. I hope the resources cover all the basic features that are there in any modern day app like …