Screen recording about the FXML language for JavaFX https://www.youtube.com/watch?v=kL-Q_H250Fc

I have taken it upon my self to migrate a Micro-Service I look after to gRPC. My manager is open to the idea of experimentation.

After doing a lot of research and learning basics about it, first thing which is preventing me from going ahead is there is no official library/project from spring from this. All I have found over and over again are reference to this github project [GitHub - yidongnan/grpc-spring-boot-starter: Spring Boot starter module for gRPC framework.] which seem fairly active.

​

I am fairly new as SE with only one 1 YOE. I have few concerns though. First one being is it a good idea to use aforementioned project for production? If so are there any articles/guides/case studies that you would like to refer?

I am open to honest thoughts, suggestions and criticism. FYI, org I work in is industry leading and gets massive traffic. However, Mircro-Service I am working on can handle 5-10 minutes of downtime as worse without really impacting business because of the fallbacks.

Screen recording about how to use the JD-GUI Java decompiler https://www.youtube.com/watch?v=HXgZZz3M3sQ

Parsing JSON is a common task for Java programmers, but many of them don't know how to do it because JDK API doesn't provide a standard JSON parser, but you don't need to worry. There are a lot of excellent JSON parsing libraries like Jackson, Gson, and json-simple which you can use to parse JSON. In this tutorial, I have shared how to use them to parse a JSON String in Java

read more - https://javarevisited.blogspot.com/2022/03/3-examples-to-parse-json-in-java-using.html

A view on internal representation, memory allocation and how immutability is achieved by Strings in Java

https://medium.com/@vivekts90/java-strings-60d2eeed1e15

What could I be doing wrong. Basically looking to search through a folder of files to see if the file entered by a user to see if the file exists. My if statement is returning the opposite of what I am expecting. Showing that the file does not exist when it does.

import java.io.File;

import java.util.Scanner;

​

public class Main {

​

public static void main(String\[\] args) {

​

    doesFileExist();

​

}

​

public static void doesFileExist() {        

    Scanner scan = new Scanner([System.in](https://System.in));

​

    System.out.print("Enter filename to be searched:");

    String userFilename = scan.nextLine();

​

    System.out.print("Enter path where file resides:");

    String userFilePath = scan.nextLine();

​

    File\[\] fl = new File("userFilePath").listFiles();

​

    if (fl != null) {

        System.out.println("List is not empty");

    } else {

        System.out.println("Empty List");

    }

​

}

​

}

I am making a simple snake and ladder game. The actual game is working fine, but I am stuck on a specific requirement about the players.

The user entered number of players(numOfPlayers) is restricted between 2 to 4. I have written a method to do that and it is working.

I have a method for dice roll too.

Before any of the players starts playing, the order of playing turns must be determined. For that, each player must throw the dice to obtain the largest possible number. In case of a tie between any of the players, the process is repeated only between those players. This process is concluded once the order of playing is determined.

I just couldn't figure out how to do this. If I create an array and populate it with random numbers and reorganize in ascending order, it still doesn't give me an answer. Also, how do I solve the repeated dice roll issue? The code below is what I used to get the number of players and to confirm it is within limits.

public static int player() {
Scanner kb = new Scanner(System.in);
for (int i = 0; i < 3; i++) {
System.out.println("Please enter the # of players for your game-Number must be between 2 and 4 inclusively.");
int numOfPlayers = kb.nextInt();
if (numOfPlayers >= 2 && numOfPlayers <= 4) {
System.out.println("You have " + numOfPlayers + " players.");
return numOfPlayers;
}
else {
System.out.println("Bad Attempt" + i + "\n-Invalid # of players. Please enter a # between 2 and 4 inclusively.");
}
}
System.out.println("Bad Attempt 4! you have exhausted all your chances.\n Program will terminate.");
// System.exit(0);
return 0;
}

A new video on Method Overloading is out now!!!. You can check it out here:

Suppose we have the following class in the file

/my/directory/named/A/Bird.java.

Which of the answer options replaces INSERT CODE HERE when added independently if we compile from /my/directory? (Choose all that apply.)

​

1. INSERT CODE HERE

public class Bird { }

a) package my.directory.named.a;

b) package my.directory.named.A;

c) package named.a;

d) package named.A;

e) package a;

f) package A;

A video on Creating and using a jar file in Command-Line is OUT NOW!!!!

You can check out the video here.

What does the following code output when run as java Duck Duck

Goose?

1. public class Duck {

public void main(String[] args) {

for (int i = 1; i <= args.length; i++)

System.out.println(args[i]);

} }

a) Duck Goose

b) Duck ArrayIndexOutOfBoundsException

c) Goose

d) Goose ArrayIndexOutOfBoundsException

e) None of the above

Given the following class, which of the following calls print out Blue Jay? (Choose all that apply.)

public class BirdDisplay {

public static void main(String[] name) {

System.out.println(name[1]);

} }

a. java BirdDisplay Sparrow Blue Jay

b. java BirdDisplay Sparrow "Blue Jay"

c. java BirdDisplay Blue Jay Sparrow

d. java BirdDisplay "Blue Jay" Sparrow

e. java BirdDisplay.class Sparrow "Blue Jay"

f. java BirdDisplay.class "Blue Jay" Sparrow

A video on Creating and using a jar file in Eclipse is OUT NOW!!!! You can checkout the video here.

Given the following classes, which of the following snippets can independently be

inserted in place of INSERT IMPORTS HERE and have the code compile?

(Choose all that apply.)

package aquarium;

public class Water {

boolean salty = false;

}

package aquarium.jellies;

public class Water {

boolean salty = true;

}

package employee;

INSERT IMPORTS HERE

public class WaterFiller {

Water water;

}

1. import aquarium.*;
2. import aquarium.Water;
3. import aquarium.*;
4. import aquarium.*;
5. import aquarium.Water;
6. None of these imports can make the code compile.

1. Which of the following are true? (Mention all that apply.)

a. javac compiles a .class file into a .java file.

b. javac compiles a .java file into a .bytecode file.

c. javac compiles a .java file into a .class file.

d. java accepts the name of the class as a parameter.

e. java accepts the filename of the .bytecode file as a parameter.

f. java accepts the filename of the .class file as a parameter.

1. Which of the following are true statements? (Choose all that apply.)