type-conversion

[Solved] Convert decimal to integer without losing monetary value

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decimal firstDecimal = 120.01M; double firstDouble = 120.01; float firstFloat = 120.01F; Console.WriteLine ((int)(firstDecimal * 100)); // 12001 Console.WriteLine ((int)(firstDouble * 100)); // 12001 Console.WriteLine ((int)(firstFloat * 100)); // 12001 Console.WriteLine (Convert.ToInt32(firstDecimal * 100)); // 12001 Console.WriteLine (Convert.ToInt32(firstDouble * 100)); // 12001 Console.WriteLine (Convert.ToInt32(firstFloat * 100)); // 12001 This means one thing…. you have something … Read more

[Solved] How to convert a String to a float array?

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First you split the string into an array: String str = “1.2, 3.1, 5.3, 4.5”; String[] arrOfStr = str.split(“,”); Then you loop through the array and convert to floats: import java.util.ArrayList; ArrayList <Double> volts = new ArrayList<Double>(); for (int i = 0; i < arrOfStr.length; i++) { volts.add(Double.parseDouble(arrOfStr[i])); } System.out.println(volts); 4 solved How to convert … Read more

[Solved] Expected primarly expression before ]? (C++)

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The error message tells you that an expression is expected at a certain point in your code: calcNumbers(myArr[missing expression here ], type); Why is that? Because operator[] takes an argument (traditionally an index), as in myArr[1]. No argument, no compile. Note that this error occurs when you are using myArr. You have other places where … Read more

[Solved] Android Studio : When ever i run my app, it says Unfortunately app has stopped [duplicate]

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Well, Your app is crashes because of java.lang.RuntimeException:java.lang.NumberFormatException: Invalid double: “” that means you are trying to convert empty string to Double. So, Because the EditText is empty your app is crashes and I have re-write your code so that you can copy-paste. Here is your MainActivity.Java package com.blogspot.techtutorialsajen.androiddevelopmentpractice; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.Button; … Read more

[Solved] How to convert a string containing “/” to a float in Python [duplicate]

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>>> from __future__ import division … … result = [] … text = “20 7/8 16 1/4” … for num in text.split(): … try: … numerator, denominator = (int(a) for a in num.split(“https://stackoverflow.com/”)) … result.append(numerator / denominator) … except ValueError: … result.append(int(num)) … >>> result [20, 0.875, 16, 0.25] 2 solved How to convert a … Read more

[Solved] How do I convert ‘Single’ to binary?

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The example expected value you’ve provided is just a straight binary representation of the number, however while probably not the most efficient way if you wanted to get the IEEE-754 representation of the number in binary you could use BitConverter.GetBytes as in the following example: Sub Main Dim i As Int32 = 1361294667 Console.WriteLine(ObjectAsBinary(i)) Dim … Read more

[Solved] How to convert every other character to upper case in a string [closed]

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If you want to get the uppercase of a char, you should use Character.toUpperCase(c), not String’s toUpperCase. So, I think you might be looking for something like this: public static void main(String[] args) { String alphabet = “abcdefghijklmnopqrstuvwxyzåäö”; System.out.println(alphabet); StringBuilder sb = new StringBuilder(); for (int i = 0; i < alphabet.length(); i++) { char … Read more

[Solved] Four 1byte char to One 4byte int? [closed]

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Try following code: #include<iostream> #include<cstring> using namespace std; #define CHAR_ARRAY_SIZE 8 int main() { char charArray[CHAR_ARRAY_SIZE] = {‘1’, ‘2’, ‘3’, ‘4’, ‘5’, ‘6’, ‘7’, ‘8’}; int intArray[2]; for(int i = 0; i < CHAR_ARRAY_SIZE/4; i++) { char ch1 = (charArray[4*i+0] – ‘0’); char ch2 = (charArray[4*i+1] – ‘0’); char ch3 = (charArray[4*i+2] – ‘0’); char … Read more