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Articles by Samual Sam
Page 77 of 151
C++ Program to Subtract Complex Number using Operator Overloading
Operator overloading can be done with most of the built-in operators in C++. The overloaded operators are functions with the keyword operator followed by the operator symbol that is defined. The overloaded operators have a return type and a parameter list like any function.A program that subtracts complex numbers using operator overloading is as follows −Example#include using namespace std; class ComplexNum { private: int real, imag; public: ComplexNum(int r = 0, int i =0) { real = r; imag = i; } ComplexNum operator - (ComplexNum const &obj1) ...
Read MoreC++ Program to Multiply two Numbers
Multiplication of two numbers a and b yields their product. Value of a is added as many times as the value of b to get the product of a and b.For example.5 * 4 = 20 7 * 8 = 56 9 * 9 = 81Program to Multiply two Numbers using * OperatorA program to multiply two numbers using the * operator is given as follows −Example#include using namespace std; int main() { int a = 6, b = 8; cout
Read MoreGregorian Calendar in Java
GregorianCalendar is a hybrid calendar that supports both the Julian and Gregorian calendar systems with the support of a single discontinuity, which corresponds by default to the Gregorian date when the Gregorian calendar was instituted.The java.util.GregorianCalendar class in Java is a concrete subclass of Calendar and provides the standard calendar system used by most of the world.Import the following package to work with GregorianCalendar class.import java.util.GregorianCalendar;The following are the constructors.Sr.No.Constructor & Description1GregorianCalendar() This constructs a default GregorianCalendar using the current time in the default time zone with the default locale.2GregorianCalendar(int year, int month, int dayOfMonth) This constructs a GregorianCalendar with the given ...
Read MoreJava Program to convert octal number to decimal number
Use the parseInt() method with the second parameter as 8 since it is the radix value. The parseInt() method has the following two forms.static int parseInt(String s) static int parseInt(String s, int radix)To convert octal to decimal, use the 2nd syntax and add radix as 8, since octal radix is 8.Integer.parseInt("25", 8)The following is an example.Examplepublic class Demo { public static void main( String args[] ) { // converting to decimal System.out.println(Integer.parseInt("25", 8)); } }Output21
Read MoreJava Program to convert decimal integer to hexadecimal number
Use the toHexString() method to convert decimal to hexadecimal. The method returns a string representation of the integer argument as an unsigned integer in base 16. The following characters are used as hexadecimal digits:0123456789abcdef.The following is the syntax.String toHexString(int i)It has only single parameter.i − This is an integer to be converted to a string.Examplepublic class Demo { public static void main( String args[] ) { int dec = 45; System.out.println("Decimal = "+dec); // converting to hex System.out.println(Integer.toHexString(dec)); } }OutputDecimal = 45 2d
Read MoreSet the Date and Time with Gregorian Calendar in Java
To work with the GregorianCalendar class, import the following package.import java.util.GregorianCalendar;Create a Date object.Date d = new Date();Now, create an object and set the time using the setTime() method.GregorianCalendar cal = new GregorianCalendar(); cal.setTime(d);The following is an example.Exampleimport java.util.Date; import java.util.GregorianCalendar; public class Demo { public static void main(String[] a) { Date d = new Date(); GregorianCalendar cal = new GregorianCalendar(); cal.setTime(d); System.out.println(d); } }OutputMon Nov 19 16:11:31 UTC 2018
Read MoreHow to convert Decimal to Hexadecimal in Java
To convert decimal to hexadecimal, use any of the two methods i.e.Integer.toHexString() − It returns a string representation of the integer argument as an unsigned integer in base 16.Integer.parseInt() − It allows you to set the radix as well, for example, for hexadecimal set it as 16.Let us see an example now to convert decimal to hexadecimal using Integer.toHexString() method.Examplepublic class Demo { public static void main( String args[] ) { int dec = 158; System.out.println(Integer.toHexString(dec)); } }Output9eLet us see an example now to convert decimal to hexadecimal using Integer.parseInt() method.Examplepublic class ...
Read MoreJava Program to get the day of the week from GregorianCalendar
For GregorianCalendar class, import the following package.import java.util.GregorianCalendar;Create an object.GregorianCalendar calendar = new GregorianCalendar();To get the day of the week, use the following field.GregorianCalendar.DAY_OF_WEEKThe following is an example.Exampleimport java.util.Calendar; import java.util.GregorianCalendar; public class Demo { public static void main(String[] a) { GregorianCalendar calendar = new GregorianCalendar(); System.out.println("Day of Week = " + calendar.get(GregorianCalendar.DAY_OF_WEEK)); System.out.println("Date = " + calendar.get(GregorianCalendar.DATE)); System.out.println("Month = " + calendar.get(GregorianCalendar.MONTH)); System.out.println("Year = " + calendar.get(GregorianCalendar.YEAR)); } }OutputDay of Week = 2 Date = 19 Month = 10 Year = 2018
Read MoreExtracting MAC address using Python
We know that the MAC address is a hardware address which means it is unique for the network card installed on our PC. It is always unique that means no two devices on a local network could have the same MAC addresses. The main purpose of MAC address is to provide a unique hardware address or physical address for every node on a local area network (LAN) or other networks. A node means a point at which a computer or other device (e.g. a printer or router) will remain connected to the network. Method1 Using uuid.getnode() In this example getnode() ...
Read MoreJava Program to concatenate a String and Integers
To concatenate a String and some integer values, you need to use the + operator. Let’s say the following is the string. String str = "Demo Text"; Now, we will concatenate integer values. String res = str + 1 + 2 + 3 + 4 + 5; The following is the final example. Example public class Demo { public static void main(String[] args) { String str = "Demo Text"; System.out.println("String = "+str); String res = str + 1 + 2 + 3 + 4 + 5; System.out.println(res); } } Output String = Demo Text Demo Text12345
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