Its supposed to notify the user if they have a palindrome, but keeps returning true even when I type, "hello".
import java.util.Scanner; public class PalinDrome { public static void main(String[] args) { String line; Scanner input = new Scanner(System.in); System.out.print("Please enter a word ");
I'm trying to get the input of two jcomboBoxes for example if jcombobox 1 option 1 and jcombox box 2 option 1 is selected result = x
Here is my code:
comboDest1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { // // Get the source of the component, which is our combo box. // JComboBox comboDest1 = (JComboBox) event.getSource();
how can i compare date with following request the value date transction must be within the Active date(>= greater than or equal) and inactive date(<= less than) date range
public class Item{ private int myId; private int myInv; public Item(int id, int inv){ myId = id; myInv = inv;
[Code] .....
I do not understand how to complete the compareTo() method and the equals() method. I understand that the compareTo() to should return 1 if the argument is smaller -1 if its bigger and 0 if they are the same, but I do not understand how it's possible to compare the current object with the object passed in as the parameter.
This is what I tried for the compareTo():
public int compareTo(Item other){ return this.compareTo(other); }
But my compiler tells me its a recursive call so I am not sure if I am doing this correctly.
Basically I am supposed to compare an object to another but I am not sure how to access the object that is not passed in as a parameter and compare it. Same goes for the equals(). This is what I tried for that (compiler also says its a recursive call):
public boolean equals(Item other){ return this.equals(other); }
public class Circle extends GeometricObject implements Comparable<Circle> { private int radius; public Circle(int newRadius) { radius=newRadius;
[Code] ....
When I run the driver class it tells me that all tests have passed(as it should be) except for Test 0. I have tried to play around with the code, but I cant figure it out and it is driving me crazy because in my head my code makes sense.
I have a ArrayList of objects of class called HockeyPlayer (ArrayList<HockeyPlayer>). A HockeyPlayer has a String name and int number of goals.
This is my current work for comparing each object in the list to every other and printing them to screen:
Iterator<HockeyPlayer> it = hockeyPlayersList.iterator(); while (it.hasNext()) { HockeyPlayer singleHockeyPlayer = it.next(); //the first one encountered // HockeyPlayer nextHockeyPlayer = it.next(); //the next one encountered
[Code]...
This of course produces some duplication in the print-out: These are the equal hockey players: Who Ever wears jersey. This type of employee is paid: true. This employee has post-secondary education: false. This employee's work is to play. This hockey player has scored 0 goals.
Jason Harrison wears jersey. This type of employee is paid: true. This employee has post-secondary education: false. This employee's work is to play. This hockey player has scored 0 goals.
These are the equal hockey players: Jason Harrison wears jersey. This type of employee is paid: true. This employee has post-secondary education: false. This employee's work is to play. This hockey player has scored 0 goals.
Who Ever wears jersey. This type of employee is paid: true. This employee has post-secondary education: false. This employee's work is to play. This hockey player has scored 0 goals.
I could get my session values in my jsp, now I want to compare the session value whether it matches the textbox, if it matches, it will redirect the user to another page else it will remain the same page.
So I am trying to create a code that searches if a word is square free. The user inputs a word (into an array) and then the code is suppose to see if it is square free. A word being square free means that the word doesn't contain any consecutive sub words. For example, "abcabc" is not a square free word because abc is repeated, but "abcdabc" is a square free word because there is a "d" separating the "abc".
So far I have this :
import java.util.Scanner; public class A3Q2 { public static void main(String[] args) { // part (a) of the main Scanner keyboard = new Scanner(System.in);
[Code] ....
I've been trying to experiment with different ways such as checking to see if there any duplicate elements such as,
public static char isSquareFree(char[] word){ for(char i = 1; i < word.length; i++) { if(word[i] == word[i - 'a']) { System.out.println("Duplicate: " + word[i]); } } return word; } }
I want to make a program in which i write the Months Strings via while into the checkbox.
I already did that but i have also to add an day if February is a loop day.
So my question is how to say java that if Months is equal to February & year is a leap year, add 1. (i didn't wrote the year code because it's not relevant for my problem.)
Java Code:
public String[] Months ={"January","February","March","April","May", "June", "July", "August", "September", "Oktober", "November", "December"}; public Asg1KeapYear() { initComponents(); int MonthNo = 0;
[Code] ....
Netbeans shows me .equals() on incompatible types on Months.equals, do i have to declare it somehow?
>Suppose that aList and bList are instances of java.util.ArrayList. Use two iterators to find and display all the objects that are common to both lists. Do not alter the contents of either list. Write the segment of code assuming that the objects are of type String.
If my understanding is correct, I need to create two Iterators (one for aList and one for bList) to compare both ArrayLists and I should output any value that appears in both lists.
This is my attempt at it:
import java.util.ArrayList; public class Test { public static void main(String[] args) { ArrayList<String> aList = new ArrayList<String>(); ArrayList<String> bList = new ArrayList<String>();
aList.add("One"); aList.add("Two");
[Code] ....
The output:
`One`
`Two`
It stops there. It's clear that my loop is wrong, but I don't really know how to go about fixing it.
Is there a different logic in Java for if statements when it comes to conditions? I mean my attempt to compare a String variable and a String attribute of a class that is on an array of objects was frustrated someway. It will not enter the if block. The two strings are equal. I displayed the values of each strings before the if evaluation and they are equal. The simbol I used was the ==, and I also tried the string.equals(string variable) as well as the compareTo() == 0 option but none of those worked. I wish I knew what it is the way to compare two strings.
I am working on an assignment that is to simulate the relationship between a cache and main memory. Basically it is supposed to be a 16 slot cache and we are to have 500 for main memory. I need it to compare the corresponding index for both arrays, then go through then repeat the cache array and compare it to the next 16 of main memory. It is to simulate an direct mapped cache. How to compare two arrays from separate loops.
public class MainMemory { private short mainMem[] = new short[200]; public void assign(){ short i; for ( i = 0; i < mainMem.length; i ++){ mainMem[i] = i;
I am trying to compare a ImageIcon in a button against another. The method which has the issue is checkMatrixValues() third from the bottom of this post. I did my best to make this post flow as I am looking at the issue, hope it is not confusing.
the view class creates a matrix of Mybuttons and Mybuttons extends JButton. I did this because I need Mybuttons to have fields within each button.
public class View extends Mybuttons{ private static final long serialVersionUID = 1L; JFrame frame; JPanel matrixPanel, optionsPanel; Mybuttons[][] matrixBtn;
[Code]...
MyButtons has a few values and methods in it but here is a peek at the fields. This post is concentrating on ImageIcon greenIcon and ImageIcon redIcon.
public class Mybuttons extends JButton { private static final long serialVersionUID = 1L; Boolean barrier,startNode,targetNode,visited; public ImageIcon greenIcon = new ImageIcon("green.png"); public ImageIcon redIcon = new ImageIcon("red.png"); private ImageIcon yellowIcon = new ImageIcon("yellow.png"); private ImageIcon resetIcon = new ImageIcon("null"); public int counter;
In the controller class one method checks to make sure there is one start and one end point by calling checkMartixValues when the enter button is pressed: (FYI greenIcon is start and redIcon is end)
if(e.getSource()==view.enterBtn){ for(int i=0;i<25;i++){ for(int j=0;j<25;j++){ //Validates matrix to see if there are more then one //red or green button pressed checkMartixValues(view.matrixBtn[i][j]);
[Code]...
When I do the following:
if(matrixBtn.getIcon()==view.matrixBtn.redIcon)
It runs but jumps to the else statement. Again it is saying redIcon is not a field yet I am able to access other fields from view.matrixBtn. I even tried:
if(matrixBtn.getIcon()==buttons.redIcon) //compiles but will skip to else statement too //remember the above if statement is in the same controller class which declares public class Controller { /*The view class holds the GUI and creates a matrix of MyButtons. *Each of MyButtons will be treated as a node in the Controller Class *Consider MyButtons as the Model in the MVC design * */ View view; Mybuttons buttons;
I need to somehow compare the random color chosen from the color array and the random name selected from the name array. I know how to compare to entire arrays of the same type such as integers. How to go about this with two different arrays. I thought maybe I could parse the color array selection to a string but had no luck with that either.
Problem #1: Design and implement an Applet that plays a simple game to teach a child to read. The game displays a picture on the left hand side of the Applet and a word on the right hand side. Below the pictures are two buttons for the child to click--one if the word matches the picture, the second of the word doesn't match the picture. Display an error message if the child is incorrect (or play a sound). Display (or play a sound) display words of encouragement if the child chooses correctly. Add a loop so the child can keep playing.