Tag: if-statement

How do I check if variable exists in a jsp page for post in index?

well this is what I want to do. I have a website that is supposed to show post created from an Admin dashboard in index page using jsp as language, I did this in Php but I can’t find how to do it in jsp in this case, how can I check if the variable “pageno” exists to begin with?

Is there a better way to write my if statement?

if-statement java spring-boot

I have a function that checks if multiple conditions are fulfilled before performing an operation. The code below shows all conditions that must be fulfilled. This code works perfectly as is. However, is there a better way of writing my if statements? Something about the look of it just feels wrong, feels ver…

Using exception for invalid entry

exception if-statement java

I am trying to use exceptions in my assignment to catch an error when a user input invalid entry. I tried using the if else statement to catch but whenever running the program it will skipped pass my exception even when I input invalid entry. Do any of you have any idea where I am wrong in the code? PS:

all of the condition are working except on the second else-if statement, how to correct this?

equality if-statement java

I am learning Java and I do not know what makes my code not reading my else-if condition (i == 5) when i’m running the code and try to fail the game by reaching the maximum number of int i which is 5, the second else if statement should appear but it is not working. I just don’t get the

Codingbat challenge: sameEnds Stream API Solution

arrays for-loop if-statement java java-stream

Given the task sameEnds from CodingBat: Return true if the group of N numbers at the start and end of the array are the same. For example, with {5, 6, 45, 99, 13, 5, 6}, the ends are the same for n=0 and n=2, and false for n=1 and n=3. You may assume that n is in the range 0..nums.length

Counting Letters & Words in a Math Equation String

counting for-loop if-statement java string

So, I have written a method named varCount(), shown below, that would count the number of letter variables in a math equation. This method is made inside a class, so the getter method of the private equation string attribute was used here. One example of what should result from this was, if you are using the …

How can I use an If-statement inside the Collector?

collectors hashmap if-statement java java-stream

The output I require is like this : The structure of this output is: Map<String, List<Pair<String, String>>> Where “Versions” is the key of the Map and [(“0.1″,”true”),(“0.2″,”false”),(“0.3″,”true”)] this is …

Problems using circular array to take inputs and stop/print the last 10 elements once “-1” is entered

arrays if-statement java java.util.scanner loops

I have a Java program that should be doing what the above title describes. Unfortunately, I am now having the issue of having nothing but zeros and a Error message no matter what I input into Scanner. The code: The output: Answer Like Namandeep_Kaur comment said, your for loop condition is incorrect. You want…

Method that scans array for most common word length, but sends error message if two different elements have the same length

arrays if-statement java java.util.scanner loops

I have a method that takes in an array (created by Scanner input in main) and sorts the array to find the most common words before printing the length of those words. However, I’m also trying to have an error message pop up if two different elements have the same length; this is where I’m having t…

Java program that asks for user’s name and prints it – issue with error message

if-statement java java.util.scanner loops string

I have a program that asks for the user’s name and prints it back out. It can do that part fine, but it currently has the issue of not printing the proper error message when the user leaves the prompt empty and presses “Enter”. The code: The current output: The ideal output: What’s wro…