Output Statement In Java

Feb 1, 2015

It has been about 2 years that I'm programming in JAVA and never has this occurred to me about the reason why this happens. So, in this code snippet

public class Test {
public static void main(String[] args) {
char m = 'A';
int p = 15;
System.out.println(m+p);
System.out.println("Answer :"+m+p);
}
}

The statement "System.out.println(m+p);" returns "80" which is evident that the type of the entire expression is promoted to the value of the largest data type int. But in the statement " System.out.println("Answer :"+m+p);, why does the output change to "Answer :A15" but not "Answer :80"?

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Apr 26, 2015

Here is my code so far. I am trying to get the WHILE LOOP to work so the user inputs a number, the if statement prints the output and then it returns to ask for another number and goes again and again looping :

import java.util.Scanner;
public class ifwhileloop {
static Scanner sc = new Scanner(System.in);
public static void main(String[] args) {
double nmbr;

[Code] ....

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Jun 19, 2014

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public String checkPasswordStrength(String passw) {
int strengthCount=0;
String strengthWord = "";
String[] partialRegexChecks = { ".*[a-z]+.*", // lower
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[code].....

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Jul 28, 2014

For example:

if(JTextField = 15-30){
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Feb 26, 2015

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what I want is: A heptagon has 7 sides .

public class Geomerty {
public static void main(String[] args) {
int sides = 7;
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Aug 14, 2014

I am trying to execute the following method: This method takes a delivery date as one of the arguments and a list of calendar holidays as another argument. If the delivery date is present in the holiday list, I will add 1 day more to the delivery date and check again if the new delivery date is part of holiday list.

Issue is that the last 3 statements before 'return' are getting executed multiple times though there is no for or while loop. Why they are getting invoked multiple times.

@SuppressWarnings("rawtypes")
private String fetchNextWorkingDay(String sDeliveryDate, Element eleCalendarDayExceptions, SimpleDateFormat sdf, Format formatter) throws Exception {
System.out.println("");
System.out.println("Inside fetchNextWorkingDay method");
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Boolean isDateSet = true;

[Code] .....

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Nov 18, 2014

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import java.util.Scanner;
public class Variable {
static Scanner zcan = new Scanner(System.in);
public static void main(String[] args)

[code]....

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Cash Register Program For 5 Products Using Switch Or If Else Statement In Java

Dec 3, 2014

We're told to make a cash register program for 5 products using Java. It loops until "-1" is entered on the "Continue?" input dialog box.There should be a:

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2. Receipt - at the end of every transaction.

3. Daily Sales Report where it shows all receipts then grand total like:

Transaction 1

-subtotal

Transaction 2

-subtotal

and so on then,

GRAND TOTAL

4. Inventory Report where it shows the Items Available before the Selling, Items Sold, and Items Available after Selling in table format.

Below is the code for a simple cash register for only one product that I made but I need to upgrade it for it to work for 5 products. That code will serve as the basis for this program.make the switch or if-else statement for the main menu first and if I got it right I try doing the rest.

int userQty1 = Integer.parseInt(JOptionPane.showInputDialog(
"Product ID Product Name Product Quantity Product Price"
+prodID1 + " " +prodName1 + " " + prodQty1 + " " +prodPrice1 "
"
+ and so on until prod5));

[code].....

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Numeric Or Value Error In Procedure When It Is Called In Callable Statement In Java?

Jun 3, 2014

I have a problem about this numeric or value error on my java class. Whenever I am calling for the procedure in callable statement it says that error. I don't know what is the problem with my sql code because I;ve tried running it on database alone and it runs perfectly. The results that I need came out fine. But when I'm already calling it in java that error appears. But I tried on finding the line that the said error is coming from and here is the code...
 
create or replace
PROCEDURE RENTING
(P_NNAME IN VARCHAR2,
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P_PHONE IN NUMBER,

[Code] ...

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Feb 26, 2015

How i would convert this java code to display using the printf statement, with two decimal places to the right...here is the source code so far, but it has a few errors and needs to be reformated for printf

import java.util.Scanner; // scanner class
public class PROB3_CHAL15
{
public static void main(String[] args)
{
double checks =0,
totalfee =0,
fee = 10,
fee1 =.1,
fee2 = .08,
fee3 = .06,
fee4 = .04,
checkFee;
String input;
Scanner keyboard = new Scanner(System.in);
 
[code]...

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Feb 23, 2014

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May 2, 2014

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May 28, 2014

try {
String hour = (String) comboBox.getSelectedItem();
String filename = fileName.getText();
String date = ((JTextField)dateChooser.getDateEditor().getUiComponent()).getText();
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[Code] ....

**Here is my question. I'm trying to use input and loop method to search for a file. The above code works but my problem is lets say I try to find 2 different text files**

1. billing-20140527[09].txt has

a)XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)XGMS,2034-05-27 30:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

2. billing-20140527[10].txt has

a)XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)HELO

I try to find the number 1 in both text files, if lets say I input the text file name is billing, I can find the number 1 in both text file and output them:

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B)/> XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

However, if I specify the text file name: billing-20140527[09].txt and find the number 1 inside the text file, it will only output:

a) XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

How can I do so? Because I can output the number 1 from both text files even though I specify the name.

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import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
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[code]....

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These are my code ...

import javax.swing.text.html.parser.*;
import javax.swing.text.html.*;
import javax.swing.text.*;
import java.io.*;
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[Code] ......

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May 9, 2014

So all the errors in the code is fixed but its now got the wrong output

what I get:

Enter numerator; then denominator.
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8
5/8
Enter numerator; then denominator.
4
10
4/10
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it should be:

Enter numerator; then denominator.
5
8
5/8
Enter numerator; then denominator.
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10
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Enter numerator; then denominator.
6 0
infinity

here is the code

Fraction.java
public class Fraction { //declares that it's a class that can be intantiated
private int numer; // private intager for numerator
private int denom; // private intager for denominator

[Code] ....

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import java.awt.*;
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May 29, 2014

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When I running my code, appear :

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at java.lang.Thread.run(Thread.java:745)
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Here's the code :

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import sun.rmi.runtime.Log;
 
[Code] .....

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here is my BinToHex class..

import java.io.*;
public class BinToHex {
double tempDec,fractionpart;
long longofintpart,templongDec;
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[Code] ....

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Attached image(s)

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Sep 30, 2014

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Here is my BinToHex class..

import java.io.*;
public class BinToHex {
double tempDec,fractionpart;
long longofintpart,templongDec;
String inpu ="11100111.011";
String hexOutput=null,tempDecString,hex = null;
 
[Code] .....

Here is how decimal fraction is converted into hex or here too...

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