[ad_1] You could use std::map with key -> primary key, value instance of your student class, but for good use some kind of database which will handle it for you. 2 [ad_2] solved How do I restrict users from entering redundant data in C++ program? [closed]
[ad_1] You don’t need to use ref in your parameter declarations. For reference types like your class A, a parameter declared as just A other will cause C# to pass a reference to the object. A parameter declared as A other in C# is similar to A* other in C++. A parameter declared as ref … Read more
[ad_1] Your if statements won’t work how you expect them to to. Let’s take an example to see why: if(board = true & board != false) This has a number of problems: You don’t need to explicitly compare to true and false. Doing so is considered bad style. if (board) is exactly equivalent to if … Read more
[ad_1] In case source as well as pList are long, you may try converting source into a Dictionary: // Provinding that all LongRecordId are distinct var dict = source .ToDictionary(item => item.LongRecordId, item => item); … foreach (var item in pList) { MyRecord foundItem = null; //TODO: Put the right type here // Instead of … Read more
[ad_1] You seem to have confused if and while. if only runs at most once. while will run any number of times until the condition is false. while num > 2: … 2 [ad_2] solved Did not understand the outputs [closed]
[ad_1] Your exponent function needs to return the n instead of x and in your main() you probably want to initialize the variable x to the value of function exponent with an argument of 5: int x = exponent(5); prior to printing via: print_exponent(x); That being said, your exponent function is broken as the return … Read more
[ad_1] You may be able to see what’s happening more clearly if you split the statement into several statements: int temp1 = printf(“Hello world!\n”); int temp2 = printf(“%d”, temp1); printf(“%d”, temp2); The first printf prints Hello world!\n. Since this is 13 characters, it returns 13. The second printf prints 13. Since this is 2 characters, … Read more
[ad_1] One way would be to just add a negative sign in front of the value: int myInt = -myInt; Another way to switch between a positive or negative number in a statement would be to multiply it by -1. myInt = myInt * -1; 0 [ad_2] solved Positive and negative number values [duplicate]
[ad_1] This: if(fare == -40){ char desc[50] = “Ouch! Cold either way!!”; } opens up a new scope, with a new local variable called desc, that “shadows” the one in the surrounding scope. This variable is initialized to the string, then thrown away as the scope exits. The variable of the same name in the … Read more
[ad_1] You didn’t post any minimal compiling code we can help you debug, so, everything I’m about to say are guesses based on other questions I’ve seen on this topic: make sure asd is declared static, CreateThread is a C function and knows nothing about class methods make sure asd is declared __stdcall, having wrong … Read more
[ad_1] #include <stdio.h> #include <string.h> typedef struct dbl9 { double array[9]; } Dbl9; Dbl9 fun(double *in){ Dbl9 ret; memcpy(ret.array, in, sizeof(ret.array));//There can be no assurance that <in> the correct return ret; } int main(){ double array[9] = {1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0}; Dbl9 dbl9= fun(array); int i; for(i=0;i<9;++i){ printf(“%f\n”, dbl9.array[i]); } … Read more
[ad_1] http://www.androidhive.info/2012/07/android-gps-location-manager-tutorial/ Go to this link to get your location You can implement a loop with postdelay handler to implement 5 minute refresh rate and run the getLocation inside that… Use SharedPreferenceManager to store the last known lat and long to the sdcard data https://mongskiewl.wordpress.com/2013/10/16/sending-json-data-from-android-to-a-php-script/ Follow this to send JSON data 🙂 4 [ad_2] solved … Read more
[ad_1] It hooks the submit event on all forms that exist as of when that code runs and, when the event occurs, prevents the default action (submitting the form) and instead dumps out the form contents to the web console. Details: // v— 1 vvv–2 v—- 3 $( “form” ).on(“submit”, function( event ) { // … Read more
[ad_1] Firstly, create the Database using SQLiteOpenHeler class and create the table. Add the columns in the table for what you want to save list item. After the database is ready, now you can insert into sqlitedatabase. For Example your List item is “Person” and person has first name and last name. Your table will … Read more
[ad_1] Please override the toString() method in your Search class. public String toString(){ return url + “, ” + txt; } 2 [ad_2] solved java ArrayList returns wrong result [closed]