When the user enters the Activity, there will be 4 spinners that he needs to fill out and then click on a submit button. A progress dialog appears and the user will then get redirected back to the prior activity. In case the user doesn’t fill out all necessary data the app gets an NPE. Is it possible to state
Tag: string
Java Null check fails and code proceeds to if statement
I have an if condition within my code and I do not want my code to proceed into the if condition if the value of the variable is Null but for some reason, the condition passes and proceeds to the next part but the value of the field is NULL. I am not sure why this issue is happening. A
How to randomize ArrayList without using Collections.swap()?
I was asked to create a method that randomly rearranges my list which contains arrays. The list contains multiple persons and their names and surnames. My question is how do I move a person (array containing two elements name and surname inside the list) to a different index without using the method swap()? Because our list does not support that
I want to return a formatted Phone Number with use substring but odd thing return
I’m new to java. why this don’t work ?? this must get something like this formatPhoneNumber([1, 2, 3, 4, 5, 6, 7, 8, 9, 0]) and after that return (123) 456-7890 Thanks for the answers. Answer When using the toString(); method in a primitive type array the result is the location in the memory e.x “[I@1b28cdfa” If you want to
Split a String with delimiter – , (comma) and double quotes over every value in java
I have a String value as – [“My, fancy, text”, “My, other, value”] I want to get the output as a List with elements as – The enclosing bracketts are to be removed.It may happen that enclosing bracketts ‘[‘ and ‘]’ are not present. ‘ Answer Assuming the requirement is to remove all the square brackets and finding text between
Converting a Java Timestamp into a String?
I have the following field in my Java Entity: It is currently a timestamp when we send it to the front end via json. How can I convert this into a string to send to front end? Answer You can use @JsonSerialize annotation. Serializer:
Get error when trying to split file path in Java
For the above code, I get the following output where p is a Path object. C:repoUnit-test-coverageabcdunit-test-repopcmbbsourcepcmbbdatabaseWorkOrderTenderUtil.plsql I want to get the file name without extension. So I tried the below code. Then I got the following output. WorkOrderTenderUtil.plsql To get the filename without extension what I tried to split the above output by .. But splitting is not happening as
How do we split words from a html file using string manipulations in java?
I need to create a method that reads a html file then display the number of word occurrence. for example: String [] words = {“happy”, “nice”, “good”}; The word happy was used 7 times. The word nice was used 1 times. The word happy was used 2 times. This is what I did: My method runs but it does not
Splitting string doesn’t give expected output
I want to split a given string according to the given format -> ,;:.?! .What I am doing is given below, but whenever it is encountering more than 1 space it is adding space to the array. I just want the word not the space. INPUT:: hello Hello HEllo hi hi: hi! Welcome, welcome OUTPUT:: 13 hello Hello HEllo hi
Find all strings with smallest length in an array
I want to return the smallest values from my words array Finding the shortest word is easy but I am not sure how to return a new array with the shortest words. The expected output is something like shorestWords [] = {“is”, “is”} Answer Since most of the answers are not considering that result is expected in String[] instead of