The while condition should probably read as: while (abs(nextValue – currValue) > 0.00000000001 && iter < 100000) Note that There is no semicolon at the end. The entire condition must be in parentheses. and is replaced by && – this is not strictly necessary because and is valid in C++ as far as I know, … Read more
You can achieve this by extracting each bits one by one, like this str[i] = (char)( (num % 10) – 48 ) 48 has to be subtracted because an integer value changing to character goes through an ASCII conversion. Keeping the above line in a loop, that would run for each digit in the number, … Read more
The first parameter to fputs is a char*, so the code you show is obviously incorrect. You say I tried itoa or sstream functions but it’s not working. but those are the solutions, and there’s no reason for them not to work. int a = 5; //the C way FILE* pFile = fopen(“myfile.txt”,”w”); char buffer[12]; … Read more
I think this will do it. Also, Object[][] isn’t right. private String[][] singleplay = {{“#”,”Name”,”Score”},{“1″,”———-“,”10”},{“2″,”———-“,”20”}}; /** * Returns the score. * * @param id * The index of the entry in the array table. * * @throws ArrayIndexOutOfBoundsException * When the destination relative position is out of bounds. * * @return The score, 0 if … Read more
Use If Statement as follow if(bWeek == Week && bMonth == Month) { getBonus = true; } == is used to compare = is use to assign value solved If statement comparing 2 conditions of ints runs as boolean
Your code isn’t C, but this is: #include <stdio.h> int main () { float add = 0; int count[] = { 3, 2, 1, 3, 1, 2, 3, 3, 1, 2, 1 }; for (int i = 0; i < 11; i++) { add += 1 / ((float) count[i] + 1); } printf(“%f\n”, add); return … Read more
The int and unsigned int variables take exactly the same amount of memory and represented in the resulting assembly code in exactly the same way. Thus adding unsigned here changes nothing from the performance point of view. In general you should not worry. The loop counter is definitely not the biggest memory consuming thing in … Read more
You might want to read Read ints from file in python It is even more straightforward from that question. I have not checked the following code but something along the spirit of fin = open(“hi.bmp”, “rb”) out = open(“values.txt”,”rw”) value = struct.unpack(‘i’, fin.read(4))[0] out.write(“%d\n” % value) # just loop over the 2 last lines out.close() … Read more
You got the initialization (first) part of the loop right. The termination or condition (second) part of the loop should be evaluated to a boolean, so assuming you require an AND relation between the conditions on a and b, it becomes a<101 && b<102. You might want || (OR) instead, depending on your logic. The … Read more
Note the line below with the comment about eating the input buffer. Since your scanf didn’t find what it is looking for in the input buffer, the wrong input just stays there and fails forever unless you do something to “eat” it. #include <stdio.h> #include <stdlib.h> int main(void) { printf(“Hello world!\n”); while (‘A’) { int … Read more
I explained where I made changes public class MainActivity extends Activity { Button search; TextView tvRing; //Making sharedpreferences and integers global for ease of use private SharedPreferences prefs; private int redRing, someint; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); search = (Button) findViewById(R.id.radar); tvRing = (TextView) findViewById(R.id.ring); //Someint default value is 0 if not … Read more
You can use boost lexical-cast which is exactly for this purpose. It will throw an exception the conversion fails. Boost is well tested and you can safly use it to do the conversion for you. This could look like this: #include <boost/lexical_cast.hpp> #include <iostream> int cube(int x) { return x*x*x; } int main() { std::string … Read more
String year1= String.valueOf (year); String month1= String.valueOf(month); String day1= String.valueOf(day); must be changed to String year1= String.valueOf (num1); String month1= String.valueOf(num2); String day1= String.valueOf(num3); because these 3 variables only hold the values entered by the user. Also, not sure why you need the hour, because you never get that as inout from the user. In … Read more
You just try to convert char* to int. You code should be: int number = atoi(argv[1]) 0 solved c++ Why can’t I use static_cast to convert char* to int?
This works for me. public class PersonService { protected int lastItemInPersonArray = 0; private Person[] persons = new Person[100]; public void addPersonToPersonArray(Person personToAdd) { persons[lastItemInPersonArray++] = personToAdd; } public static void main(String[] args) { PersonService ps = new PersonService(); ps.addPersonToPersonArray(new Person(“P 1”)); ps.addPersonToPersonArray(new Person(“P 2”)); ps.addPersonToPersonArray(new Person(“P 3”)); System.out.println(ps.persons[0].nome); System.out.println(ps.persons[1].nome); System.out.println(ps.persons[2].nome); } } class Person{ … Read more