COMPUTATION in Java Assign Data Matrix 2d barcode in Java COMPUTATION bar code for C#

How to generate, print barcode using .NET, Java sdk library control with example project source code free download:
COMPUTATION generate, create none none on none projectsbarcode creator } // end roundOff } // end SQL Server 2000/2005/2008/2012 The output from the program is:. Payment = 170.57724306813628 Rounded Payment = 170.58 THE NumberFormat CLASS COBOL uses an edit p none none icture clause to format numeric data for display. This picture clause contains edit characters such as $, Z, 0, to control the appearance of the edited value. Given the PAYMENT from the previous section, we format it to currency by coding an edit eld (EDITED-PAYMENT) containing the appropriate edit characters, then move PAYMENT to EDITED-PAYMENT.


The output is:. EDITED-PAYMENT = $170.58 In keeping with the none none spirit of OO however, Java uses methods in the appropriately named class NumberFormat, to format numerical data. The NumberFormat class is a member of the java.text package and it gives us several useful methods for formatting numerical data.

Incidentally, this class also works for different countries by specifying locale. See the Java API Help documentation for the speci cs. Here, we will demonstrate two of these methods: one for currency, and one for commas.

In the previous example, we had a payment value of 170.58. If we wish to have this value displayed in currency format (with a dollar sign $) we can use the NumberFormat class.

Similarly, if we have another value, say 1234.56 that we wish to have displayed with a comma as 1,234.56, we again can use the NumberFormat class.

There are two steps required to convert our payment amount to currency ($170.58):. The NumberFormat Class 1. Create a currency none for none object of NumberFormat using the class method getCurrencyInstance():. NumberFormat currenc yFormat = NumberFormat. getCurrencyInstance();. 2. Call the format() none none method in the new object to convert payment to a formatted String with a leading dollar sign:. String formattedPaym ent = currencyFormat. format(payment);. Variable holding the value 170.58 The String object fo rmattedPayment now contains $170.58. We can also use NumberFormat to format numbers with commas, but without a dollar sign.

Again, there are two steps: 1. Create an object of type NumberFormat using the class method getInstance()..

NumberFormat numberF none none ormat = NumberFormat. getInstance();. 2. Call the format() method to convert a number to a formatted String with commas inserted:. String formattedNumb none none er = numberFormat.format(1234.56);.

We can use a variable or a literal value The String object fo none none rmattedNumber now contains 1,234.56. Listing 5.

7 ( demonstrates several of the formatting methods in NumberFormat..

Listing 5.7: // demonstrate metho none for none ds in the NumberFormat class // import java.text.

*; public class NumberFormatDemo { public static void main(String args[]). COMPUTATION { // demonstrate cur none none rency format NumberFormat currencyFormat = NumberFormat. getCurrencyInstance(); String currencyNumber = currencyFormat. format(123456.

78); System.out.println ("currencyNumber = " + currencyNumber); // demonstrate comma format NumberFormat numberFormat = NumberFormat.

getInstance(); String commaNumber = numberFormat.format (123456.78); System.

out.println ("commaNumber = " + commaNumber); // demonstrate percent format NumberFormat percentFormat = NumberFormat. getPercentInstance(); String percentNumber = percentFormat.

format(0.78); System.out.

println ("percentNumber = " + percentNumber); // demonstrate decimal format DecimalFormat decimalFormat = new DecimalFormat("##,##0.00"); String decimalNumber = decimalFormat.format (123456.

7890); System.out.println ("decimalNumber = " + decimalNumber); } // end main } // end NumberFormatDemo.

java. The program output is:. currencyNumber = $12 none none 3,456.78 commaNumber = 123,456.78 percentNumber = 78% decimalNumber = 123,456.

79. Note that the decimal format forces rounding for us. Summary of Key Points in 5 SUMMARY KEY POINTS 1. Java uses excepti ons as a tool to deal with errors and other important conditions that occur while our program is running. An exception is an object that contains information about the condition that caused the exception to be created.

We can use the existing exception classes or de ne our own custom exceptions. We use the Java try-catch structure to execute code that can cause an exception. 2.

Java has six numeric data types. Four of these (int, short, long, and byte) contain whole numbers and two (float and double) allow decimal positions. We must explicitly cast to convert data types from one to another whenever truncation may occur.

3. In addition to the primitive data types, Java has classes for each of these. These classes are called wrapperclasses because they wrap an object around the data.

These classes provide various methods to access and convert the data. 4. In addition to the standard add, subtract, multiply, and divide arithmetic operators, Java includes modulus, increment, decrement, and assignment operators.

5. The Math class extends Java s computation capability beyond the basic arithmetic operations. These methods include pow() to raise a value to a power, round() to return the closest integer value to the argument, and oor() to return a truncated value.

Several of the Math class methods have similar COBOL intrinsic functions. 6. The NumberFormat class gives us tools to format numerical data by inserting commas and adding dollar signs.

Copyright © . All rights reserved.