Java program to check if an array is subarray of another array class So this program will check if a given array, contains a certain subarray. My question is, what would the time complexity be for this program? I have tried to calculate it by checking all statements, since variable i can get reset I can not f…
Tag: arrays
how to print a single output in for loop?
How can I print only one output in for loop? If the number is in array then it will print “Present” but if the number is not in the array it will print “Nope”. And I need to search the number the user inputed. Input: output: Expected Output: Present Answer You need to maintain a variab…
MessageDigestMessage Digest returning different key after first digest
Here is how I initialize MessageDigest And here is how digest to get bytes for password which I later convert to string (no issue there) Now assume the password is “Password@1”. Here is the output first time (apologies for long text below) 115,83,48,-2,41,29,-99,71,-54,-53,-26,-67,-118,48,-75,77,1…
Find passwords values in JSON objects using Regex
I have a big JSON object which contains a lot of different JSON, most of them have the structure below (key: sometext-v1.password, and value: password for example: I want to use Regex to extract all passwords by a name which contains ‘password’ string and its value, but I don’t want to itera…
Java method for checking for duplicate values in an array outputs new line for each duplicate value [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago. Improve this question I’ve created a method in java that checks (and counts) for duplicate…
How to allow out of bounds index in Java
I try to make the program so that the user can give input of the interger of the Month (e.g when user inputs number 4, The output should be April) and it will keep asking so long the user inputs a …
Casting Issue for Generic Array of Node Objects
I am having problem with java generic array creation where I needed to make an array of type Node. So, I did this for declaration: private Node<E> [] nodes; and later for initialization, nodes = (Node<E>[]) new Node [values.length]; When I try to do something like set the Node object’s attri…
Remove a specific row from a 2D Array
Given a 2D array and a string, how can I remove a row which does not contain a specific string? So far, I created a nested for loop which iterates through the array, adding all adjacent elements(except the string itself) to an ArrayList. However, I do not want to include elements from rows that exclude the sp…
Java – splitting files by newline
How can I split file by newline? I’ve attempted to split by doing line.split(“\r?\n”) – but when I try printing the 0th index I get the entire file content when I was expecting just the first line. but if I try printing the result at index 0 I get the entire file content, when I expect…
How to create a ‘best fit’ comparison of several integers and an input integer in Java?
I have 3 (subject to change to more rooms in the future, but that’s irrelevant) rooms, all with a different number of seats (suppose these are ‘Room’ Objects): Room Seats 1 10 2 20 3 30 I then input a value of the number of seats I need to reserve and then my code will automatically assign t…