Can we develop cross-platform applications using electron ?

if yes, need some links for reference to develop cross-platform applications

what are differences between eclipse short cuts F3 and Control +Shift+G
when to use which one?

Please advise

What is the issue with the above code and how would you fix it?
indentation does not matter in this code, ":=" denotes the substitution, and "=" is the equal comparator.

========
Initial state of an array "a":

[[2, NULL, 2, NULL],
 [2, NULL, 2, NULL],
 [NULL, NULL, NULL, NULL],
 [NULL, NULL, NULL, NULL]]

========
Main function:

FUNCTION foo()
    FOR y := 0 to 3
        FOR x := 0 to 3
            IF a[x+1][y] != NULL
                IF a[x+1][y] = a[x][y]
                    a[x][y] := a[x][y]*2
                    a[x+1][y] := NULL
                END IF
                IF a[x][y] = NULL
                    a[x][y] := a[x+1][y]
                    a[x+1][y] := NULL
                END IF
            END IF
        END FOR
   END FOR
END FUNCTION


What does the foo function do?

How could you make foo more generic? Can we have three possible generalization directions ?

We only increment by 1 the matrix table when we encounter 1 only if the entire proceeding row has zero and the entire succeeding row has zero. If there is something like this 0,1,1,1,1,0 then we increment only 1 not four times. zero represents none in the matrix table so for instance if the entire succeeding row is and the current row is 1  then in matrix table we want to increment the index where the row is none and column is column1.  I have written some code but it only happens to increment for one column.

I have attached a file with data.
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays;
import java.util.Scanner;

public class Incrementing {

    static String[][] resultMatrix = new String[30][30];

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        int n = 0;
        //in_data1 is used to read a line from the file
        String in_data1;
        //in_data2 is used to read a line from the file after in_data1 line
        String in_data2 = "";
        //in_data1_arr array is used to store the data from in_data1 split by ","
        String[] in_data1_arr;
        //in_data2_arr array is used to store the data from in_data2 split by ","
        String[] in_data2_arr;
        //this is the array which has 34 indices in which we increment the the index which satisfy the condition
        int[] count = new int[34];

        // display output matrix …

I am tring to decrypt a excel file but there is an error occur Input length must be multiple of 8 when decrypting with padded cipher

private String decrypt1(InputStream encrypteddata) throws IOException, IllegalBlockSizeException, BadPaddingException {
        try {
            byte k[] = "NiTh5252".getBytes();
            System.out.println("Encrypted Data stored in byte k: " + Arrays.toString("NiTh5252".getBytes()));
            byte[] bytes = IOUtils.toByteArray(encrypteddata);
            System.out.println("Encrypted Data stored in bytes: " + Arrays.toString(bytes));
            SecretKeySpec key = new SecretKeySpec(k, "DES");
            Cipher enc = Cipher.getInstance("DES");
            enc.init(Cipher.DECRYPT_MODE, key);
            byte[] textDecrypted = enc.doFinal(bytes);               ///error in this line
            System.out.println("Encrypted Data stored in textDecrypted: " + Arrays.toString(textDecrypted));
            System.out.append("Decrypted Text is :" + new String(textDecrypted));
            return new String(textDecrypted);
        } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException e) {
            e.printStackTrace();
        }
        return null;
    }

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Hi,
I have deployed my code on two machines M1 and M2.
They fetch a USer Object which contains details about name, designation, emailID etc corresponding to a userId.
Currently i am storing them in cache like this :

import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
    private Cache<String, User> userCache;
 userCache = CacheBuilder.newBuilder()
                .maximumSize(1000)
                .expireAfterWrite(60, TimeUnit.MINUTES).build();

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But i just realized that there will be two caches on M1 and M2 separately. That could be an issue because say M1 caches data for a user. But the load balancer than sends the request to M2 and it will have to again fetch data.
what are the possible solutions to this ?
I can think of keeping another machine with all the cache data in RAM.
And so create a cache on M1 and M2 that programmatically connects to this machine.
But then comes the problem of having one more replica of this machine because in case one is down then
we still have data access...
Please suggest what is used to solve this type of problem ?

Thanks

We are working on an e-commerce application. We are at the point of integrating Elasticsearch for the product search engine with Spring boot application with Spring data. We have tried different tutorials online (check links below) but they all doesn't run well. No indexes are added to the Elasticsearch.  We are using ES 6.3.1 and the maven dependency is as follows.

               

 <dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
		</dependency>

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Product Entity

@Entity
@Document(indexName = "product", type="default")
public class Product {

    @javax.persistence.Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long Id;
    private String Name;
    @Lob
    @Type(type = "text")
    private String Description;
    private String ShortDescript;
    private String Model;
    private String Brand;
    private String Sku;
    private String Isbn;
    private Integer Shipping;
    private BigDecimal SalePrice;
    private BigDecimal RegularPrice;
    private Integer Quantity;
    private Double Weight;

//other code here
}

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Product Repository

@Repository
public interface ProductRepository extends ElasticsearchCrudRepository<Product, Long> {

    @Query("select p from Product p where p.supplier.id = ?1")
    public Iterable<Product> GetAllProductsBySupplier(Long id);
   
}

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We have installed kibana locally and have tested with test data and it works. But not with the Spring Boot application. Need your help. Thanks

1. https://www.baeldung.com/spring-data-elasticsearch-tutorial
2.https://www.mkyong.com/spring-boot/spring-boot-spring-data-elasticsearch-example/

Dear sirs,
Please help, how can I avoid this exception. It happens when my http response includes an empty List in the body.

org.springframework.web.client.RestClientException: Error while extracting response for type [java.util.List<?>] and content type [application/json;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of `java.util.ArrayList` out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.util.ArrayList` out of START_OBJECT token at [Source: (PushbackInputStream); line: 1, column: 1] at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:115) at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:991) at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:974) at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:725) at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:698) at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:649) at com.finger.services.AppRestTemplateService.doHandleListRequest(AppRestTemplateService.java:140) at

Please, assist

I have the following code that calls a class "m", passing in a List (and a double) as follows...

my_outlier = (double) m.getOutlier(Arrays.asList(1.1, 2.1, 31.1, 4, 3, 4), 0.95)

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Notice that the List is hard-coded.  I need to pass in a List variable somehow, but I can't get it to work. The "asList" seems to need that hard-coded list of numbers within parenthesis. Any suggestions?

MY JMX console is down. Observed jboss services are in hung state. So, When i am trying to restart my jboss in my putty its not getting restarted and showing the below info in the log continuously......I have tried to reboot the server once - its worked. but the next day its the same issue.

 INFO  [JMSContainerInvoker] Waiting for reconnect internal 10000ms for OntarioStatusListenerBean
INFO  [JMSContainerInvoker] Trying to reconnect to JMS provider for OntarioStatusListenerBean
ERROR [JMSContainerInvoker] Reconnect failed: JMS provider failure detected for OntarioStatusListenerBean

Again.........starts


INFO  [JMSContainerInvoker] Waiting for reconnect internal 10000ms for OntarioStatusListenerBean


Please help me with fix for this issue.

I am reading a bunch of csv files that share the same structure and I would like to skip the first three columns.
This is my code:

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.Scanner;

public class Readcsv {
    public static void main(String args[]) throws FileNotFoundException {
        int n = 0;
        int[] count = new int[25];
        String fileRead;
        File file = new File("folder path");
        File[] fileNames = file.listFiles();
        assert fileNames != null;
        for (File fileNamed: fileNames) {
            Scanner inputFile = new Scanner(new FileReader(fileNamed+""));

            while (inputFile.hasNext()) {
                fileRead = inputFile.nextLine();
                for (String filed : fileRead.split(",")) {
                    if (filed.equals("1")) {
                        count[n] = count[n] + 1;
                    }
                    n++;
                }
                n = 0;
            }
        }
        for (int c_out:count) {
            System.out.print(c_out+" , ");
        }
    }
}

Hello Experts, I am building an installer and as part of the package, I need to install a H2 db which I want to happen silently when the user clicks Ok. Currently, the user is asked for the path of the H2 database, etc. Is there any way I can pass the defaults as parameters along with the ExecWait command?

	setOutPath $INSTDIR
	
	MessageBox MB_OK \
    "The lightweight H2 Database will be installed which is a prerequisite for the setup."
	File "Installers\h2-setup.exe"
	ExecWait '"$INSTDIR\h2-setup.exe"'	$0

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flames.txtplease rectify the below issue in java programs flames.
Flames is a program that take two string  after getting input of two string it can remove the common charter in both the String:after it can find the length of two string  and based on the length it give Some clue:that u are suggested