returning doubles with 2 decimals JAVA
Hi all.
I'm writing a program where users input the cost of an item (in the constructor), so for example,
Item (string name, double cost, int qty) { ... }
I have a method
public double getCost() {
...
}
And I want it to return the cost. I tried using DecimalFormat, but I was told that it doesn't change the number itself.
I need to return a Double, not a String!!
So when my client queries:
item.getCost()
They are give a double in return, example,
3.00
I tried this, but it didn't work:
DecimalFormat df = new DecimalFormat("#0.00");
String itemCost = (df.format(cost));
cost = Double.parseDouble(itemCost);
return cost;
}
It needs to return a string but I need it to return a double.
Help please.
View Answers
Ads
Related Tutorials/Questions & Answers:
returning doubles with 2 decimals JAVA
returning doubles with
2 decimals JAVA Hi all.
I'm writing a program where users input the cost of an item (in the constructor), so for example,
Item (string name, double cost, int qty) { ... }
I have a method
public double
how to print float with 2 decimals python
how to print float with
2 decimals python Hi,
I am new to Python programming and trying to print float value on console. I want to print this value with
2 decimals places.
How to print float with
2 decimals python
Advertisements
ModuleNotFoundError: No module named 'doubles'
ModuleNotFoundError: No module named '
doubles' Hi,
My Python... '
doubles'
How to remove the ModuleNotFoundError: No module named '
doubles... to install padas library.
You can install
doubles python with following command
Create an array of 5 doubles...
Create an array of 5
doubles... Part one
In a
Java program, create an array of 5
doubles. Have the user input values into these array items inside a loop using JOptionPane. Using the loop, calculate the sum and average of the 5
java code 1 of 2
java code 1 of
2 Create a washing machine class with methods as switchOn, acceptClothes, acceptDetergent, switchOff. acceptClothes accepts the noofClothes as argument & returns the noofClothes
Hi Friend,
Visit
Moire Pattern 2 Java
Moire Pattern
2 Java textWhat you are seeing in the screenshot...;
g2.setColor(Color.black);g2.fillOval(centerX, centerY - ovalWidth /
2, 300, ovalWidth... - ovalWidth /
2, 300, ovalWidth);g2.rotate(Math.toRadians(15),centerX,centerY
java code 1 of 2
java code 1 of
2 Create a washing machine class with methods as switchOn, acceptClothes, acceptDetergent, switchOff. acceptClothes accepts the noofClothes as argument & returns the noofClothes
Hi Friend,
Try
Java 2 micro editionJ
Java 2 micro editionJ Hello, i am using JCreator, for writing my J2ME program, after building the program, it keeps on given me the following errors:
package javax.microedition.midlet does not exist
package
returning a value from Threads
returning a value from Threads Hello I have worker pattern that uses ExecutorService to schedule Thread execution but getting stuck at some point when
returning a value using Future.I have code snippet below:
ExecutorService
StringTokenizer not returning proper result
StringTokenizer not
returning proper result I have this code...
System.out.print("Enter the stack integers side by side with a space in between: ");
StringTokenizer st=new StringTokenizer(br.readLine());
int a[]=new int[9000
executing java program with 2 classes
executing
java program with
2 classes how to run a program of
java containing more than one class....ex of program is given below....
class C...);
}
}
Executing
java program with
2 classes
save the file with D.java
method returning null on JSP page.Plz HELP!!!
method
returning null on JSP page.Plz HELP!!! public String... it is
returning null while the parameter values are successfully passed.while I am... to
Java, so please help me as it could also because of some silly mistake.
Thanks
method returning null on JSP page.Plz HELP!!!
method
returning null on JSP page.Plz HELP!!! public String... on the jsp page it is
returning null while the parameter values are successfully... here.
I am new to
Java, so please help me as it could also because of some silly
round double to 2 decimal places java
round double to
2 decimal places java Hi,
How to round double to
2 decimal places
java?
Thanks
Hi,
BigDecimal class can be used...) {
BigDecimal bd = new BigDecimal("203.56849");
bd = bd.setScale(
2
Java Captcha in Struts 2 Application
Java Captcha in Struts
2 Application
This
Java Captcha Example demonstrates you how to
develop a captcha Servlet and use in your Struts
2 application.
Developing Struts
2
Captcha
use is of 2
use is of
2 why we use
2 in "Integer.parseInt(str,2);" for binary to decimal conversion..??
ya i got it... because binary contain only two o and 1...so here use
2...same as octal has 8
Magicbox 2
Magicbox
2 how to build this?
import java.util.*;
class magicbox...;
}
}
}
}
v15=a[0][0]+a[0][1]+a[0][
2]==15 &&
a[1][0]+a[1][1]+a[1][
2]==15 &&
a[
2][0]+a[
2][1]+a[
2][
2]==15 &&
Struts 2
Struts
2 we can extend DispatchAction class to implement a common session validation in struts 1.x. how to do the same in the struts2
Struts 2
Struts
2 I am just new to struts
2 and need to do the task.
I have a requirement like this :
when i click on link like Customer , this will display all the customers , address from a database table using jdbc and the screen
Struts 2
Struts
2 I am getting the following error.pls help me out.
The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has
new 2
new
2 <%@page import="java.util.ArrayList"%>
<%@page...;
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
2
sevelet
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
2
import java.io.IOException;
import java.io.PrintWriter;
import