[Solved] Unexpected behavior of a switch statement in a for loop [closed]
condition should be incrementing by 10: for (int x = 10; x <= 20; x=x+10) solved Unexpected behavior of a switch statement in a for loop [closed]
java
[Solved] Converting double to string with a return
try this: public String getTestGauge(){ return String.valueOf(<yourdouble>); } –> this is prettier return (new Double(<yourdouble>).toString()); solved Converting double to string with a return
[Solved] value
Search a lot and find a way $user=$_REQUEST[‘user’]; Php change to $user=$_REQUEST[‘username’]; Will work Perfectly.. Thanks to Yazen https://stackoverflow.com/users/3604083/yazan solved value
[Solved] Why can’t I use method return as a pointer in Java?
This has nothing to do with Java. In the first example you call lastNode once and store the result in p. In your second example, you call lastNode twice, but after the first call, you add a new last node to your list, so the return value is different the second time! 0 solved Why … Read more
[Solved] Data sharing between java web application and Mainframes
Create web services in your java application that expose the data the Mainframe wants from the Oracle database. It will then be up to the Mainframe development group to choose the language and framework that best fits their environment to call the web services. Since Mainframe systems are heavily customized you need to discuss requirements … Read more
[Solved] Method error – missing return statement in Java
public boolean insertNode returns a boolean. If you want to do something in a function without returning anything, just replace public void insertNode Return value is SUPER important in all programming languages. Get used to always put the correct return value of a function (If you precised it on the function’s prototype). In your case, … Read more
[Solved] java method which can be changed
Seems like a basic setter… It should go like public void setCapacity(int newCapacity) { this.capacity = newCapacity; } solved java method which can be changed
[Solved] Project: Create a java webapp in Vaadin (to-do-list)
To improve my programming skills If you want to build web apps using pure Java on the server-side, Vaadin fits the bill. You describe the layout and widgets you want to appear in the user interface using Java code. Then, at runtime, Vaadin automatically generates the necessary HTML, CSS, JavaScript, DOM, AJAX, WebSocket, and Push … Read more
[Solved] COMPARABLE – How to see if elements from objects are equals?
If you want to know just if an object is equal to another you have to implemet the equals method (which doesn’t requiere you to declare any interface, every class can do it) @Override public boolean equals(Object o) { CompararListas other = (CompararListas) o; return … } with this method you can return what makes … Read more
[Solved] what are the different type of files (File type) that we can create in java?
In java (and in any other programming language able to create files) you can create any kind of file. There are libraries to create and manage at least: pdf – for example pdfbox xls xlsx – Apache poi doc docx – Apache poi txt csv json – Faster jackson xml yaml zip jpg gif tif … Read more
[Solved] Are the math operators +,-,*,/ strings, floats or integers?(Java)
I can already get the integers but I am having trouble with the operators since I don’t know what category they fall in They belongs to none of these. They are part of programming language and not data type. Data types and operators work along to perform some action like int a, b; int c … Read more
[Solved] Shift all elements in a 2-dimensional array by column index
This program uses a logic in which we rotate an array by reversing array in parts. First we will reverse array upto index location and then reverse remaining array ( index+1 to last element of array). After completing above two steps we call again reverse function but this time on whole of the array that … Read more
[Solved] Can’t understand Java doubly linked list [closed]
DLLNode is a user defined class just like your Doublylinkedlist class. A possible example of what that DLLNode class might look like: public class DLLNode { int data; DLLNode next; DLLNode prev; public DLLNode(int data) { this.data = data; this.next = null; this.prev = null; } } 7 solved Can’t understand Java doubly linked list … Read more
[Solved] Don’t understand lines and how to assign genres to objects in this class
Even if your genre field was public, when you try to assign it in your current code, you would end up with a NullPointerException anyway, because just creating an array of objects does not actually create objects inside it. This is where your constructor comes in. This function: public Painting (String aGenre) { genre = … Read more
[Solved] Write a class for a simple credit card account
The description you have given is basically check-list of functionality that needs to be implemented. My suggestion is to break each task down into smaller and smaller bits and that you can work your way through and check of as you do them. This will give you a nice roadmap, and also give you good … Read more