[Solved] TutorialsPoint – Flask – SQLAlchemy not working

[ad_1] The tutorial has an indentation problem in the student class. The constructor code should be indented one level so it becomes a method of the student class. Corrected code: (note the indent of “def init(self, name, city, addr,pin):” in the code below) class students(db.Model): id = db.Column(‘student_id’, db.Integer, primary_key = True) name = db.Column(db.String(100)) … Read more

[Solved] Why this c++ code doesn’t compile? [closed]

[ad_1] std::list<Tree<T>&>* children; Standard containers can’t store reference types. From the rest of the code, it looks like this should store Tree<T> objects. (If you wanted to refer to objects that live somewhere else, you’d have to store pointers rather than references; but this doesn’t seem to be the case here). You also have a … Read more

[Solved] Print all possible combinations, given a specific number format [closed]

[ad_1] Try this: with open(‘file.out’, ‘w’) as output: for n in xrange(100000000): s = “{0:08d}”.format(n) output.write(s[:2] + ‘-‘ + s[2:] + ‘\n’) … But be aware that that’s a lot of combinations, it’s possible that you’ll run out of memory, and if not anyway the resulting file will be huge and the program will take … Read more

[Solved] Select database where datetime>now()? [closed]

[ad_1] Store now() in a variable and then compare using where clause. Also see this and this Update :<?php $timeZone=”Asia/Kolkata”; //variable for indian timezone date_default_timezone_set( $timeZone); //default timezone set to indian time $now = date(“m/d/y G.i:s”); echo $now; ?> Check for date functions in PHP 2 [ad_2] solved Select database where datetime>now()? [closed]

[Solved] A java program such that one character from the first string is concatenated with one character from the second string from left to right [closed]

[ad_1] Here is a solution expanding on your own code (with explanations). Please try to understand the code, before using it in your homework. public static String concateAndAppend(String data1, String data2) { char[] str1 = data1.toCharArray(); char[] str2 = data2.toCharArray(); String result = “”; //we must iterate to the length of the smaller string //if … Read more

[Solved] Center horizontally absolute div in another floating div [closed]

[ad_1] These are the css elements you need to change: .right { width: 200px; height: 100%; background-color: green; float: right; position: relative; //here } .messageWrapper { overflow: hidden; bottom: 0; max-height: 100%; min-height: 20px; width: 170px; text-align: center; //here width: 100%; //here position: absolute; //here } .message { min-height: 20px; background-color: yellow; margin-left: auto; //here … Read more

[Solved] How do I store a variable in Python

[ad_1] here is a simple way to do this : import random score = 0 number = int(raw_input (‘hello, please enter a times table you would like to practice \n’)) while number > 12 or number < 2: if number > 12: print ‘number is too big must be between 2 and 12 \n’ else: … Read more

[Solved] How do I change the “design” of a ? [closed]

[ad_1] Simple. <div style=”background-color:YOUR_COLOR; width:YOUR_WIDTH; margin:MARGIN;”>TEXT</div> Uses: background-color is your background-color. You can also use color for text color. Refer to colors here. width is your chosen width for the div. You can also use px at the end of the number to define pixels length. Refer to a tutorial here margin is defining the … Read more

[Solved] Materialize css input range [duplicate]

[ad_1] When working with position: relative; the way the object in question is positioned is indeed relative to page margins of your document or relevant container. So for example, of you had a header that you wanted to be positioned in the upper left hand corner of the screen, then the code may look something … Read more

[Solved] how to insert Json object in database [closed]

[ad_1] Example of database connection : //ENTER YOUR DATABASE CONNECTION INFO BELOW: $hostname=”localhost”; $database=”dbname”; $username=”username”; $password=”password”; //DO NOT EDIT BELOW THIS LINE $link = mysql_connect($hostname, $username, $password); mysql_select_db($database) or die(‘Could not select database’); Exemple of INSERT array in database : $json = file_get_contents(‘php://input’); $obj = json_decode($json,true); //Database Connection require_once ‘db.php’; /* insert data into DB … Read more

[Solved] How to write conditional css?

[ad_1] Here I used the sibling selector ~. div { height: 30px; } .div1 { background: red; } .div2 { background: blue; } .div1:hover ~ .div2 { background: yellow; } <div class=”div1″></div> <div class=”div2″></div> If there would be more than 1 div2 and you only want the first immediate use the adjacent sibling selector + … Read more

[Solved] Android how to sum the same object an ArrayList

[ad_1] I solved my question, is not simple question IF first added boolean equals in my class public boolean equals(Object o) { ItemAdubacao adubacao = (ItemAdubacao) o; if (this.getTanque_id() == adubacao.getTanque_id() && (this.getProduto().equals(adubacao.getProduto()))) { return true; } return false; } then I created an ArrayList to separate the duplicate objects and adding the sum of … Read more