Constructor In A Class Cannot Be Applied To Given Types

Feb 13, 2015

This code works

public class RedShapeDecorator extends ShapeDecorator {

public RedShapeDecorator(Shape decoratedShape) {
super(decoratedShape);
}

Below results in an error

public class RedShapeDecorator extends ShapeDecorator {

protected Shape decoratedShape;
public RedShapeDecorator(Shape decoratedShape) {

this. decoratedShape=decoratedShape;

}

So I am guessing that if you extend class, you should use super to pass objects?

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Error Constructor Class Cannot Be Applied To Give Types

Jun 12, 2014

I'm getting an error on line 51 and don't know what it means?

/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/ 
package million;
import java.util.Scanner;
import java.util.ArrayList;

[code].....

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Declaring Class In Main Class - Constructor Cannot Applied To Given Types

Aug 1, 2014

So i declared a class in main class but it seems there's error when i compile:

constructor xx in class xx cannot applied to given types

This is my java class:

public class trainer extends person{
String classType;
public trainer(String name, String gender, String address, int id, String classType) {
super(name,gender,address,id);
this.classType=classType;

[Code] ....

And this is the way i declared in main class:

trainer tr = new trainer();

And what i want to do is:

tr.toString();

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Constructor Jframe In Class Jframe Not Be Applied To Types

Jun 22, 2014

So I have this line of code...

ioexception11.addChoosableFileFilter(new Jframe());

And when I compile it gives me...

error: constructor Jframe in class Jframe cannot be applied to given types;
ioexception11.addChoosableFileFilter(new Jframe());

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Method GetRadius In Class Circle Cannot Be Applied To Given Types

Sep 15, 2014

I am getting an error with my code. How to fix it.

import java.util.Scanner;
import java.util.*;
/*
* FileName: Circle.java
*/

public class Circle {
private double PI = 3.14159;
private double radius;
public Circle()
{
radius = 0.0;

[Code] ....

This is the error i am receiving:

Circle.java:78: error: method getRadius in class Circle cannot be applied to given types;
System.out.println("A circle with a radius of " + circle.getRadius() + " will have an area of " + circle.getArea() + " , a diameter of " + circle.getDiameter() + " and a circumference of " + circle.getCircumference());
^
required: double
found: no arguments
reason: actual and formal argument lists differ in length
1 error

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Method Setradius In Class Circle Cannot Be Applied To Given Types

Sep 7, 2014

I'm new to programming and I have an assignment due in java class. Here is the error code:

TestCircle.java:10: error: method setradius in class Circle cannot be applied to given types;
circle1 = inputCircle.setradius();
^
required: double
found: no arguments
reason: actual and formal argument lists differ in length

And here is my code:

import java.util.Scanner;
public class TestCircle
{
public static void main(String[] args)
{
double circle1;
double circle2;
double circle3;
Circle inputCircle = new Circle();

[Code] ......

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Netbeans - Method Cannot Be Applied To Given Types

Sep 23, 2014

Here is my code:

import java.util.*;public class DebugSix {
public static void main(String[] args) {

ArrayList<String>products = new ArrayList();
products.add("shampoo");
products.add("moisturizer");
products.add("conditioner");
Collections.sort(products);

[Code] ....

I am using netbeans and getting errors for display(); and size(); it is telling me the errors are :

for the display error, "method display in class DebugSix cannot be applied to given types;
display();" and for the size() is : "cannot find symbol System.out.println("
The size of the list is " + size());"

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Form Initialization - Method Cannot Be Applied To Given Types

Apr 21, 2015

/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/

package BaiVeNha;
import java.util.ArrayList;
import java.util.List;
import javax.swing.table.DefaultTableModel;

[Code] ....

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Pass Private Final Class Object To Another Class Constructor

Aug 28, 2014

can we pass private final class object to another class constructor?

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Creating New Constructor In Child Class Which Is Not In Parent Class

Feb 7, 2014

I've a parent class with a argument constructor like below(a sample code)

public class Parent {
Parent(String name) {
System.out.println(name);
}
public static void main(String[] args) {
}
}

Also I've child.class which extends Parent.class as shown below,

public class child extends Parent {
child(String name) {
super(name);
}
}

Now, I want create/modify the constructor which is in child, by taking "int i" as an input instead of "String name". How can I do that? Run time I want to execute child constructor not a parent constructor.

Condition is: Without making any changes to the Parent class

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Constructor In Abstract Class?

Jun 23, 2014

Do we have constructor in abstract class? If we have then what is the use of it?

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Constructor Error When Extending A Class?

Oct 21, 2014

I am writing a program that should take a url and scan the page for any links. It is in the beginning stages, but I ran into an error when I tried to extend a class. There's a lot going on in this code, but the error is caused by the constructor.

Error message at compile time:

"constructor Page in class Page cannot be applied to given types;
{//Constructor
^
required: String
found: no arguments
reason: actual and formal argument lists differ in length".

Here's the code(first my class, then the class I extended)

public class SearchEngine extends Page {
public static Color customGreen = new Color(69, 194, 33);
public static Color customYellow = new Color(232, 166, 12);
public static Color customBlue = new Color(25,97,255);
public static Color customYellowComp = new Color(178,125,0);

[code]...

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Private Variables In Class / Constructor

Jan 7, 2014

When creating a class with a constructor, why does one have to create private variables (attributes) to be used as parameters by the object? The object's parameters will be set to be exactly equal to the private variables (attributes), so what is the point of having the private variables (attributes) Why are both private variables (attributes) and parameters needed when they are set to be equal each other anyway?

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Writing Constructor In Abstract Class

Feb 4, 2015

Below Code

abstract class A
{
A(int a, int b)
{
}
}

If we can't create objects for abstract class, what is the need of writing constructor???

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How To Test Default Constructor In Different Class In Java

Nov 5, 2014

How do you test a default constructor in one class and then test it in a different class? This is the code for the Person class which has the default constructor. I'm not sure in the PersonTester class how to access this default constructor and how to test it - what I have so far for the second class is also below.

class Person {
// Data Members
private String name; // The name of this person
private int age; // The age of this person
private char gender; // The gender of this person

[code]...

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Type Inference With Constructor Of Generic Class

Jul 15, 2014

I am following this article : [URL] ....

It is important to note that the inference algorithm uses only invocation arguments, target types, and possibly an obvious expected return type to infer types. The inference algorithm does not use results from later in the program.

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Create Constructor With Parameters And Methods In Same Class?

Feb 28, 2014

The one problem in my book was to create a constructor for different shirt features, which I did and ran successfully. Out of curiosity, I also added other methods to see if it would run if the parameters were different from the constructor. It keeps giving me a constructor error. So, my question is, am I able to create a class that uses a constructor with parameters and other methods without errors? I'm guessing there's no reason to since it would be wasted space since the constructor could do it but was just curious if it's possible.

Is everything from the constructor down (in the class) and Shirt.oneShirt (in the main) just a waste of time?

Here's my example:

public class Shirt//class name.
{
int collarSize;//data field.
int sleeveLength;//data field.
int pocketNumber;//data field
public final static String MATERIAL = "cotton";//final data field for material.
public Shirt(int collarSize, int sleeveLength, int pocketNumber)//start of constructor.
{

[Code]...

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LightController And Circle Class - Creating A Constructor

Jan 6, 2015

I have two classes LightController & Circle. I need to use the LightController class to do the following:

Creates an instance of Circle with a diameter of 50 and a colour of OUColour.GREEN and assigns this new circle to the instance variable light.

Sets the xPos of light to 122.
Sets the yPos of light to 162.

I am struggling to write the correct line of code to set the colour to green and set diameter to 50.

Code for the two classes below.

001
import ou.*;
002
import java.util.*;
003
/**
004
* Class LightController
005
* This class uses the Circle class, and the Shapes window

[Code] ......

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How To Create Object To Be Null If Class Constructor Parameter Is Int

Mar 8, 2015

I have a class of Date with a constructor with 3 parameters in it. Those 3 parameters are int data type just to enter month, year, day.

I have another class called Author which has a constructor of Date diedDate; as a parameter passing to the Author constructor.

I was asked to call the Date parameter is null, call the default constructor but I thought for the Date parameter I could only enter something like 0,0,0 instead of typing in null, null, null because null is for String data type isn't it?

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Null Detected In String Array Not Saved By Class Constructor

Mar 12, 2014

I've a vertical-bar-delimited file where most elements contain text, some contain whitespace, and some are empty. Examples:

62RG|fe|Pencil Financial Group, LLC||doug@pencil.com|||85637889|Cross, Ben|bcross@godaddy.net|Bernard|Cross|Ben||315 One Tree Hill Terrace|Lafayette|LA

62RG|fe|Pencil Financial Group, LLC||tracy@pencil.com|||13658734|Dustin Cardwright|dcart@motorola.com|Dustin|Cartwright|||| |LA

which I parse and store with

String str_arry = innline.split( "|", 17);
lisst.add( new Contact( str_arry));

and my Contact class has the constructor

public Contact( String[] str_arry) {
for( int ii = 0 ; ii < str_arry.length ; ii++ ) {
if( str_arry[ii].matches("^s+$")) {
str_arry[ii] = null;
System.out.println("hit a null");

[Code]...

I expect the for-loop in the constructor to find any elements containing whitespace characters and set them to null for subsequent assignment.And when the code runs I do see some hit-statements pop up, so the detecting part is working.

But when I then process the list and access a Contact object and test fields for nulls I don't find any ie

if( aContactObj.getfFCity() == null) System.out.println("city is null");

never prints when it should.

What's the trick? Or is my approach wrong and if so what should it be?

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Creating WordCounter Class With A Constructor That Takes File Name As Parameter

Mar 4, 2014

Instructions

Create a WordCounter class with a constructor that takes a file name as a parameter

The class should have two fields: one for the file name and one for a HashMap to store word count information

The constructor should call a private method, countWords, that reads in the file and counts the word frequencies

The class should contain a get method for each field, as well as a print method that prints out the map in the following format:word:frequency

When printing, the map should be sorted by either the word order or frequency (Hint: see Collections.sort)

You should include the sample text file on Blackboard. This is what i got so far

Java Code:

import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Scanner;
public class WordCounter

[Code] ....

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JSF :: Rich Faces Skin Not Applied

Aug 11, 2014

I am retrieving data in <rich:datatable> , but the default skin color is not being applied in my page. My web.xaml is as below

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>richFacesApp</display-name>

[Code] ....

I am using tomcat 7.0 and Richfaces 4.0

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How To Call EnrolStudent Method On Unit Constructor In Another Class When Create A New Unit

Mar 29, 2014

public Unit(String code, String name)
{
enrolStudent(student);
this.unitCode = code;
this.unitName = name;
}
public void enrolStudent(Student newStudent){
students = new ArrayList<Student>();
newStudent = new Student(24662496, "Kingsley", " Iwunze");
students.add(newStudent);
}

how can I call this enrolStudent() method on this Unit constructor in another class when I create a new Unit. all I need is to enroll students in units when units are created. below is my create unit method.

public void createUnits( ){
units = new ArrayList<Unit>();
units.add(new Unit("FIT2034", "Java Programming 2"));
units.add(new Unit("FIT2024", "Software Engineering"));
units.add(new Unit("MAT1830","Discrete Maths"));
unit.enrolStudent(new Student(25486321, "Julia", "Garcia"));
unit.enrolStudent(new Student(44589736, "James", "Olivia"));
unit.enrolStudent(new Student(47852103, "Lucky", "Thyriod"));
}

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Sort Strings In Alphabetical Order - Method Not Being Applied

Jan 21, 2014

I'm doing an exercise we're you're supposed to sort strings in alphabetical order, without importing anything , not using the Arrays.sort() method.

I think I got the method down partially right, or it is on the right track, but it is completely not being applied to my answer. All it prints out in the console is the actual String array twice, without sorting anything.

public class arrayofstrings {
public static void sort(String[] a) {
String temp= "";
int min;
int i= 0;
for (int j=0; j<a.length-1; j++) {

[Code] ....

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I/O / Streams :: Escaping Double Quotes Be Applied To Reading From A File?

Sep 26, 2014

If I'm using an xml file and the piece of data I want from the file looks like Staff id ="Test";

Is it something like this? Only seen two examples of it but I'm not sure they were reading from a file like myself.

Staff id = """ + Test + """;

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JavaFX 2.0 :: Combobox - Visible Count Row Not Applied And Doesn't Change

Oct 15, 2014

I have noticed a strange behavior of Combobox element. The number of visible rows is not the same established by setVisibleRowCount() method. It happens when changing the items list dynamically. The following example reproduces it. I think it is Javafx 8 bug. I have tried unsuccessfully to trigger some event indirectly to refresh the combobox drop down.

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
public class TestComboBox extends Application {
    private int count;

[Code] .....

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