How to make a AI system that chooses fastest way and navigates through walls to a certain grid spot?

Basically I'm trying to improve on the Ghosts in a Pacman game I'm making. In the orginal pacman when a Ghost is eat...

C# equivalent to Java's charAt()??

I know we can use the charAt() method in Java get an individual character in a string by specifying its position. Is...

What is the best way to generate a random float value included into a specified value interval??

I want to generate a random float value in Java. The value has to be within a specific range of possible values. Fo...

Basic Memory Model Diagram for Node Class (Java)?

I have a question to draw the memory model diagram for the code below: With the given answer here: My question i...

Initializing multiple variables to the same value in Java?

I'm looking for a clean and efficient method of declaring multiple variables of the same type and of the same value....

ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”?

Why does the following code raise the exception shown below? BigDecimal a = new BigDecimal("1.6"); BigDecimal b = n...

Eclipse internal error “Polling news feeds”?

I'm using Eclipse(4.9.0) on my MacBook (High Sierra, Java 11) and this error is showing sometimes, if I'm on another...

Can't Instantiate Map…well why not??

Map<String, ArrayList<Pair<String, Integer>>> k = new Map<String, ArrayList<Pair<String,...

java.util.regex.PatternSyntaxException: Dangling meta character '+' near index 0 +?

I am getting the error when I launch my UI that causes this code to spit the error at me in the title. It works for ...

What causes “Unable to access jarfile” error??

I want to execute my program without using an IDE. I've created a jar file and an exectuable jar file. When I doub...

expand and collapse icons?

As you can see from the images below the expand and collapse icons are gray, as is the row selection highlight. This...

Futuristic GUI in Java??

First of all sorry for my english, it's not my mother tongue. I want to made a program in java, i was thinking that...

How to represent empty char in Java Character class?

I want to represent an empty character in Java as "" in String... Like that char ch = an empty character; Actuall...

Unrecognized request: { _request: evaluate } in visual studio code?

This is my java code on visual studio code when I try to run it on visual studio code and enter a number it says: Un...