I am creating a list from which the user can select from using Vaadin8. I want to get the values from the Enum but the string values with spaces not the Element Names. Here is the list created to select from the Enum elements: And here are 3 lines I tried that did not work: Answer You can add a
Tag: tostring
error: incompatible types: String[] cannot be converted to String
I tried taking input of a 6 by 6 matrix in java using the string split function when the string is input in the following way, and to print the matrix. The output that I get is my code: pls, suggest how I can overcome this error Answer When we call split function of String return the String[]. So c[j]
Displaying an ArrayList alphabetically
I have a class written that takes a string, counts the occurrences of each letter within the string and then prints the occurrences of each. I want this to be displayed alphabetically, but not sure …
Integer.parseInt() and Integer.toString() runtime
Would the runtime of Integer.parseInt(String i) and Integer.toString(int i) both be O(n)?
Android: java.lang.NullPointerException: Attempt to invoke virtual method ‘java.lang.String java.lang.Object.toString()’ on a null object reference
Facing a problem with a practice app I’m working on. I’m facing a NullPointerException problem relating to the toString method. Being new to android app development, I’m unsure of the exact cause even after my research into this. Hence I ask for someone who is more familiar with the stack trace to kindly help me out. Note: The error occurs
How do you write a toString() method for an int array for object oriented programming?
How do you write an toString() method for an int array? Say to return the string representation of a 52 card pack? Here is an example array as part of a class: This is being done in an object oriented manner. How would a toString() method be written in this case in order to return a string representation of the
What is this: [Ljava.lang.Object;?
I get this when I call toString on an object I received from a function call. I know the type of the object is encoded in this string, but I don’t know how to read it. What is this type of encoding …