Trim Spaces Between Words
Feb 4, 2014How can i make sure that when user enter value there is no space between words example :
NEW YORK MUST BE NEW YORK
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Enterprise JavaBeans :: JPQL Does TRIM Column Containing Only Blank Spaces Returns Null?
Oct 6, 2014In Oracle SQL, when you do trim(column_name), if column_name is blank spaces only (say datatype is CHAR(8)), then "trim(column_name) is null" is true.
In JPQL, if you do "TRIM ( BOTH FROM p.column_name ) is null", does it evaluate to true just like in Oracle SQL?
The reason I'm asking, is my colleague wrote some code in JPQL like below:
... TRIM ( BOTH FROM CONCAT(p.column_name, '#@') ) = '#@'
He said he originally wanted to compare the TRIM result to empty String '', but the result is false, so he concat the column to some junk.
So if after the TRIM, the result is the same junk he added, then the column contains only blanks. I think this works but there could a simpler way to do it.
Program That Accept Words And Their Meanings Or Display List Of Words In Lexicographical Order
Apr 15, 2015Write a menu driven program that either accepts words and their meanings, or displays the list of words in lexicographical order (i.e. as in a dictionary). When an entry is to be added to the dictionary you must first enter the word as one string, and then enter the meaning as separate string. Another requirement - from time to time words become obsolete. When this happens, such word must be removed from the dictionary.
Use the JOptionPane class to enter the information.
Use the concept of linked list to carryout this exercise. You will need at minimum the following classes:
- A WordMeaning class that hold the name of a word and its meaning.
- A WordMeaningNode class that creates the node of information and its link field.
- A WordList class that creates and maintain a linked list of words and their meanings.
- A Dictionary class that test your classes.
For the output, the program should produce two scrollable lists:
- The current list of words and their meanings.
- The list of the deleted words. You need not list the meanings, just the words.
So far, I have everything coded except for the remove method, and I am not sure how to code that. I coded the add method already, but now I don't know where to begin with the remove method in my WordList class. My classes are below.
WordMeaning Class:
public class WordMeaning {
String name;
String definition;
WordMeaning(String t, String d) {
name = t;
definition = d;
[Code] .....
Trim In StringBuilder And String?
Feb 1, 2015I have a question about an exercise of OraclePress.
public class OompahLoompah {
public static void main(String[] ar){
final StringBuilder str = new StringBuilder("I good! ");
str.insert(2, "look ").append("and nice");
str.insert(str.length(), "!!!");
str.delete(str.length() - 2, str.length());
System.out.println(str.toString().trim());
}
}
The correct output is "I look good! and nice!" , but i don't understand for what .
Why the trim () method does not work? Whether is working on an object String.
JSP / JSTL :: Trim Whitespace Directive?
Jun 12, 2014When using trim-directive-whitespaces in a Tomcat 7 application this expression also get trimmed:
<div class="${item.view} ${item.className}">
resulting in the HTML
<div class="personchild">
instead of
<div class="person child">
On the other hand, when I first assign the expression to a varibale it's fine:
<c:set var="className" value="${item.view} ${item.className}"/>
<div class="${className}">
results in the desired HTML
<div class="person child">
Is this the intention of the trim whitespace directive or does this look like a bug?
JSP :: How To Ignore Or Trim Directive Attribute With Space
Mar 17, 2014I have the below code with spaces on uri and prefix (directive attribute).
<%@ taglib uri=" news.tld" prefix=" news" %>
how to fix without altering the JSP? Can i handle with web.xml or any other property available.
I have hundreds of jsp like this and wanted to handle without code fixes.
I tried JSP trimSpaces but it fixes the namespace but not the attributes.
How To Trim Leading Zeros In Array Of Digits
Feb 4, 2015I have an array made that represents digits and I am trying to make a method so that if there are zeros in front of the first significant digit I want to trim them, I understand you can't re size arrays so I have created a new array, but my code doesn't seem to run correctly? Here is my code I can't figure out what is wrong I've tried everything: (I put stars around the error**)
package music;
import java.util.Random;
public class Music {
private int length; // length of the array
private int numOfDigits; // number of actual digits in the array
int[] musicArray;
[Code] .......
Postal Code In Database - Leading Zeros Been Trim
Jun 10, 2014I got situation where i have postal code as 0009 in database and the use is entering 0009 but somehow in my java code it only reading 9 from the xml file
This is how i define getter and setter :
When I debug the code i get this :
passed postalcode 9
if a user entered 0009 I what it to remain 0009
Java Code:
public String Postalcode="";
public void setPostalcode(String Postalcode) { this.Postalcode = Postalcode; }
public String getPostalcode() { return Postalcode; }
How To Add Spaces To A Pattern
Apr 21, 2015I have created this program that outputs
1
12
123
1234
12345
123456
I tried looking up some ways to create spaces in between each number, but I failed miserably. Here is what I have right now.
public class Iterations {
public static void main(String[] args){
for(int i=1;i<=6;i++)
{
for(int j=1;j<=i;j++)
System.out.print(j);
[Code] ....
How To Read A Name Which Has Spaces In Java
May 2, 2014I do not know how to read a name which has spaces in Java and I wish to learn. The following is my code
import java.util.*;
public class Asking {
public static void main(String []args) {
Scanner reader = new Scanner(System.in);
String [] names = new String[20];
int [] marks = new int[20];
[code]....
Digit Separation By Three Spaces Each
Oct 14, 2014I am having a problem of how to write a program dat will input one number consisting of five digit,separate the number and print the digits separated from one another by three spaces each.. I tried to use divisional and remainder operation but it didn't work.
View Replies View RelatedPadding Will NOT Work - Adding Spaces?
Apr 22, 2014Why this will not pad?? It keeps displaying normally, even if i add spaces it will not work.
System.out.printf("%-20s%-20s%-20s%-20s", p.getLastName(),
p.getLastName(), p.getSocialSecurityNumber(),p.getAge());
This is what it is printing:
=================== =================== ====================== ===
lastname, firstname, 123-12-1234, 16
The lastname, firstname, 123-12-1234, 16 should be padded and appear with about 20 spaces between them.
Splitting A String While Keeping Some Spaces
Jan 21, 2014I am trying to split a string into a String[] tokens array to declare variables for an object; however, I'm having an issue getting the string to tokenize correctly. Here's an example of the input:
a : 100 : John Smith : 20 Main St.
a : 101 : Mary Jones : 32 Brook Rd.
Here is the basic code I have now, to properly sort each line of text, etc. (without the split() method):
Java Code:
while (scanner.hasNextLine()) {
currentLine = scanner.nextLine();
lineScan = new Scanner(currentLine);
if (currentLine.startsWith("/") || currentLine.trim().isEmpty())
continue;
[Code] ....
I was able to eliminate the comments and identifiers from the text by trimming the first two characters of the string. For the split, I tried String[] tempArray = currentLine.split("s+"); however, that also took the spaces out of the addresses and names...so the results looked like this:
100
John
Smith
20
Main
St.
As you can see, it splits via space regardless, including where I replaced all the :'s with spaces. Is there any way to do this?
String From User Not Removing Spaces
Apr 6, 2014I'm not sure why but my infix string isn't removing the spaces. Here is the part of the code:
Scanner s = new Scanner(System.in);
System.out.println("Enter Infix express: ");
String infix = s.nextLine();
infix.replaceAll("\s", "").trim();
System.out.println(infix);
InfixtoPostfix convert = new InfixtoPostfix(infix);
String postfix = convert.toPostFix();
System.out.println("Converted Express: " + postfix);
Is there something I'm doing wrong? Here is the output when I run it:
Enter Infix expression:
(7 + x) * (8 – 2) / 4 + (x + 2)
(7 + x) * (8 – 2) / 4 + (x + 2)
Converted Expression: 7 x+ 8 – 2* /4 x 2++
Deleting Spaces In Java Code
Mar 1, 2014My method below works fine to print a matrix but when it prints every row, it is printing extra 4 white spaces which is not required. How can I delete those extra spaces at the end? when I use
System.out.print((matrix[i][j] + " ").replaceAll("^s+", ""));
It trims every thing including the spaces I needed for my matrix. So where should I put replaceAll("^s+", "") ?
Java Code:
private static void printMatrix(int[][] matrix) {
System.out.println();
System.out.println("Matrix:");
for (int i = 0; i < matrix.length; i++) {
for (int j = 0; j < matrix[i].length; j++) {
System.out.print(matrix[i][j] + " ");
}
System.out.println();
}
} mh_sh_highlight_all('java');
Dealing With Spaces During Input String Conversion?
Oct 5, 2014I am working on a small brain teaser project where I am taking a string input from a Scanner, and turning into ascii. The problem comes into play when the string has a space in it, so if the question is what's your name? and you say Michael Jackson, Michael gets converted then Jackson becomes the answer to the next question, rather then the second portion of the current string.
This is an older version of what I'm doing currently, but it had the same basic problem with spaces.I will say I did my current version entirely different.
nner user_input = new Scanner (System.in);
//Creates a string
String favoriteFlick;
System.out.println("Enter the title of your favorite film?");
favoriteFlick = user_input.next();
[Code] .....
Deleting White Spaces In Java Code
Mar 1, 2014My method below works fine to print a matrix but when it prints every row, it is printing extra 4 white spaces which is not required. How can I delete those extra spaces at the end? when I use
System.out.print((matrix[i][j] + " ").replaceAll("^s+", ""));
It trims every thing including the spaces I needed for my matrix. So where should I put replaceAll("^s+", "") ?
private static void printMatrix(int[][] matrix) {
System.out.println();
System.out.println("Matrix:");
for (int i = 0; i < matrix.length; i++) {
for (int j = 0; j < matrix[i].length; j++) {
System.out.print(matrix[i][j] + " ");
}
System.out.println();
}
}
Audit File - How To Add Certain Number Of Spaces For Each Line
Feb 7, 2014I create a Audit file within my Java program, which gets all the System.out.println lines from the code.
For example, the System.out.println lines in my code are as follows:-
Records initially inserted into edited: 70144
Bad license number records removed: 5
Total records in edited: 70139
Records initially inserted into tabedited:7463
I want all my values aligned after the statement, when they are printed to the Audit File.
Instead of just giving spaces by counting the number of charaters in the line, is there any other way to align them.
Not Printing Contents Of Array With Spaces And Commas
Nov 7, 2014public class ArrayPrinter {
public static void main(String[] args) {
int[] oneD = {5, 6, 7, 8};
PrintArray(oneD);
}
public static void PrintArray(int[] Arr) {
System.out.println ('[');
for (int i =0; i >= Arr.length; i++) {
System.out.print (Arr[i]);
if (i < Arr.length){
System.out.print(", ");
}
System.out.print (']');
}
}
}
I tried to format this to enhance readability but I'm not sure if I managed to improve it any... This code should be printing the contents of the array with spaces and commas its just printing [. I think this is because Arr is empty for some reason but I'm not sure why it would be when it gets the values of oneD passed to it.
Code That Reads In Lines Of Text And Returns Number Of Spaces
Nov 28, 2014I am trying to make a java code that reads in lines of text and returns the number of spaces in each line.I think i have made it but i can not compile it..
Here is my code:
class Mainh {
public static void main( String args[] ) {
System.out.print( "#Enter text : " );
String text = BIO.getString();
while ( ! text.equals( "END" ) )
[Code] ....
How To Delimit Spaces In User Input Separating Two Data Types
Jan 17, 2015I am creating a calculator in which a user will directly input the numbers and the operator...
Here is my code:
int answer = 0;
int num1, num2;
char operator;
System.out.print("Enter calculation: ");
num1 = kb.nextInt();
operator = kb.next().charAt(0);
num2 = kb.nextInt();
The code above will accept the user input when there are spaces like this: 1 + 1
So the program will give an answer which is 2...BUT
if i input 1+1 it will give an error...Exception in thread "main" java.util.InputMismatchException
How can i do that it will separate integer to character? because i set the operator as character....
So that it will accept one digit to several digit numbers... like 500+84 or 1520+872??
Multi-word Hangman Game - Spaces Not Displayed When Program Run
Apr 9, 2015I created a simple Hangman game. It functions correctly, the only issue is when the file contains a phrase (2 or more words), spaces are not displayed when the program is run. For example, if the phrase was Java Programming Forums.
It would appear as _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
I want there to be spaces in between the words. How could I fix this? What would I need to add to my code?
import java.util.Scanner;
import java.io.*;
public class hangman{
public static void main (String[] args) throws FileNotFoundException{
Scanner kb = new Scanner(System.in);
String guess;
String guesses = "";
int wrongGuess = 8;
[Code] ....
Separating Integers Into Individual Digits And Print Separately By Three Spaces Each
Mar 11, 2014Write an application that inputs one number consisting of five digits from the user, separates the number into in individual digits and prints the digits separated from the user, separates the number into its individual digits and prints the digits separated from one another by three spaces each.
For example, if the user types in the number 42339,
the program should input 4 2 3 3 9.
Here is my code so far but I am stuck.
mport java.util.Scanner;
public class Seperating {
public static void main ( String[] args) {
Scanner input = new Scanner(System.in);
int number = 0 ;
System.out.printf("%d" , number );
System.out.print("Enter integer");
number = input.nextInt();
}
}
but I am not getting the result I wanted what am I doing wrong
String Formatting - Enter Three Positive Integers Separated By Spaces
Sep 18, 2014double a = scan.nextInt();
double b = scan.nextInt();
double c = scan.nextInt();
//**********************************Equations**********************************
System.out.println ();
double sum = a + b + c;
System.out.printf("Sum = %d", sum);
Heres the error I'm getting
Enter three positive integers separated by spaces, then press enter:
15 20 9
Sum = Exception in thread "main" java.util.IllegalFormatConversionException: d != java.lang.Double
at java.util.Formatter$FormatSpecifier.failConversion(Unknown Source)
at java.util.Formatter$FormatSpecifier.printInteger(Unknown Source)
at java.util.Formatter$FormatSpecifier.print(Unknown Source)
at java.util.Formatter.format(Unknown Source)
at java.io.PrintStream.format(Unknown Source)
at java.io.PrintStream.printf(Unknown Source)
at project2.main(project2.java:52)
Write A String Name Variable To Store Letters / Dotes And Spaces Only In Java?
Apr 5, 2014I am trying to write a program and the name variable can only store letters,dotes and spaces. But whenever I enter a space, the program doesn't work. Following is my code.
import java.util.Scanner;
import java.util.*;
public class Space {
public static void main(String []args) {
Scanner reader = new Scanner(System.in);
[Code] ....
If Else - Numbers To Words Conversion
Jul 23, 2014Convert Number to words using If Else Codes?
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