I’m doing an encryption app with 4 different methods of encryption, one of them is a vowel replace, the problem is that is not working and I’m not sure why, this is the vowelReplace class: } this is my interface: public interface StringEncrypter { } and the controller where I handle the input and …
Tag: string
Merge lines that share a word-link
so I’m having a small problem in java. I have something like “Victor Fleming” “Gone With” “With The” “The Wind.” So what the sentence should actually look …
Java compiler wrongly marks varible as might already have been assigned to
For some reason java compiler marks the lower str variable as “might already have been assigned to” although this scenario is not possible (at least so I think). any idea why? I know removing the final modifier will solve it but I would like to understand the reason… using java 15 on intelli…
How to centre-justify and format String in Java
I know that there are many previous explanations, but similar to my problem I did not find ! Simply i have a code to drow a bill info using graphics2d ! My Full Code IS : the output is like this : my problim is in this line : After i used a String.format it is must do the center
How to solve Cannot invoke “String.compareTo(String)” because “[]” is null?
The sorting works on the id but i have problems in my names it wont push through the bubble sort and say its null, im just starting learning this language and it would be a great help. Ive been working on this since last night and ive tried transffering it under the if else(choice == 2) still it says null.
Index of first distinct character between two strings using a recursive method
I need to find the index of the first distinct character between two strings using a recursive method. Examples with expected outputs: rFirstDistinctPlace(“Little parcels”, “Little pretzels”) -> 8 rFirstDistinctPlace(“Gold shadow”, “gold shadow”) -> 0 rFir…
How do I change the distance between words?
How can I change the distance between words in a string in Android Studio using the methods? I need the distance to be about half the size of the standard space. as I understand it, after BackgroundColorSpan(Color.BLACK), you can add a parameter to change the distance between words. Answer There are different…
How to check if a JWT Token has expired without throw exceptions?
I’m developing a Java application (using Spring Boot) and I need some help: This application receives as input a JWT token which I process in a method. The method for now is the following: } However, I need to implement a logic that must check in several places whether the token obtained has expired or …
Javers – comparison String, Collection and Boolean with defined rules
I have 2 classes: And also my own defined comparators(rules): These comparators are defined so that an empty String is treated the same as null, an empty Collection is treated the same as null, and a Boolean false is treated the same as null. In the main method I try to compare 2 objects so as to check if the
How to replace occurance of numbers with single value?
I have below code Which gives output: I need: So from string if numbers found just replace with %d one only, not every digit. Answer You need to change your regex to “[0-9]+” Oracle’s doc: Quantifiers