`getDeclaredMethods` includes all methods declared *by the class itself*, whereas `getMethods` returns only public methods, but also those inherited from a base class (here from `java.lang.Object`).

Read more about it in the Javadocs for [`getDeclaredMethod`][1] and [`getMethods`][2].


  [1]: https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#getDeclaredMethods--
  [2]: https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#getMethods--

I&#39;m trying to show some data using a doughnut chart from Chart.js2.

My current chart looks like this:  
[![current chart][1]][1]

My desired output must show another attribute, which is the percentage, and looks like this:  
[![desired chart with percentage][2]][2]

I&#39;ve read the documentation, but I can&#39;t cope with this because it&#39;s very general and I&#39;m new to JavaScript.

My code for the first chart is the following:

    const renderCashCurrencyPie = (cashAnalysisBalances) =&gt; {
      if (cashAnalysisBalances) {
        const currenciesName = cashAnalysisBalances
        .map(curName =&gt; curName.currency);
    
        const availableCash = cashAnalysisBalances
        .map(avCash =&gt; avCash.availableCash);
    
        let currenciesCounter = 0;
        for (let i = 0; i &lt; currenciesName.length; i += 1) {
          if (currenciesName[i] !== currenciesName[i + 1]) {
            currenciesCounter += 1;
          }
        }
    
        const currenciesData = {
          labels: currenciesName,
          datasets: [{
            data: availableCash,
            backgroundColor: [
              &#39;#129CFF&#39;,
              &#39;#0C6DB3&#39;,
              &#39;#FF6384&#39;,
              &#39;#00FFFF&#39;
            ],
            hoverBackgroundColor: [
              &#39;#FF6384&#39;,
              &#39;#36A2EB&#39;,
              &#39;#FFCE56&#39;,
              &#39;#00FFFF&#39;
            ]
          }]
        };

[1]: https://i.stack.imgur.com/0VHP3.png
[2]: https://i.stack.imgur.com/aM5mq.png

How to customize the tooltip of a Chart.js 2.0 Doughnut Chart?

I&#39;ve `nignx container` and one `asset container` which have all my assets build from grunt or some other tools.

Now in docker compose file,  i want to mount `asset container&#39;s` &#39;s folder path into `nginx container` so nginx can serve that files.

- How can we do that? i don&#39;t remember but i think there is a option where we can share path of one container with another.

- Suppose if i scale up nginx  to 2 container then will that mount works for all instance of nginx?

- if i scale up `asset container` then what will happen?

- i also want to mount that with my host so development can be done be easily.

Docker compose how to mount path from one to another container?

Can someone please elaborate on this, and explain the difference between the two methods, and when/why you would want to use one over the others

Java Reflection: Difference between getMethods() and getDeclaredMethods()

<p>Can someone please elaborate on this, and explain the difference between the two methods, and when/why you would want to use one over the others</p>


for example I have a method in my CRUD interface which deletes a user from the database:

    public interface CrudUserRepository extends JpaRepository&lt;User, Integer&gt; {

        @Transactional
        @Modifying
        @Query(&quot;DELETE FROM User u WHERE u.id=:id&quot;)
        int delete(@Param(&quot;id&quot;) int id, @Param(&quot;userId&quot;) int userId);
    }
This method will work only with the annotation @Modifying. But what is the need for the annotation here? Why cant spring analyze the query and understand that it is a modifying query?

why do we have to use @Modifying annotation for queries in Data Jpa

I am getting this error for my Java code

       Caused by :`com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException`: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB` server version for the right syntax to use near &#39;type = `MyISAM`&#39; at line 1

This is the query passed by hibernate:

    Hibernate: create table EMPLOYEE (emp_id integer not null, FNAME varchar(255), LNAME varchar(255), primary key (emp_id)) type=MyISAM

I have looked at all questions related to this error. But in all that questions the user itself is passing query &quot;`type = MyISAM`&quot; so they can change &quot;`type`&quot; to &quot;`engine`&quot;, but here hibernate is responsible for creating table, so I don&#39;t understand where the mistake is, and how I can fix it.

This is my configuration file:

    &lt;hibernate-configuration&gt;
     &lt;session-factory &gt;
     &lt;property name=&quot;hibernate.hbm2ddl.auto&quot;&gt;create&lt;/property&gt;
      &lt;property name=&quot;hibernate.connection.driver_class&quot;&gt;com.mysql.jdbc.Driver&lt;/property&gt;
      &lt;property name=&quot;hibernate.connection.url&quot;&gt;jdbc:mysql://localhost/servletcheck&lt;/property&gt;
      &lt;property name=&quot;hibernate.connection.username&quot;&gt;root&lt;/property&gt;
      &lt;property name=&quot;hibernate.connection.password&quot;&gt; &lt;/property&gt;
      &lt;property name=&quot;hibernate.dialect&quot;&gt; org.hibernate.dialect.MySQLDialect&lt;/property&gt;
      &lt;property name=&quot;hibernate.show_sql&quot;&gt;true&lt;/property&gt;
      &lt;mapping resource=&quot;Employee.hbm.xml&quot;/&gt;
     &lt;/session-factory&gt;
    &lt;/hibernate-configuration&gt;

This is my mapping file:

    &lt;hibernate-mapping&gt;
        &lt;class name=&quot;first.Employee&quot; table=&quot;EMPLOYEE&quot;&gt;
            &lt;id name=&quot;id&quot; type=&quot;int&quot;&gt;
                &lt;column name=&quot;emp_id&quot; /&gt;
                &lt;generator class=&quot;assigned&quot; /&gt;
            &lt;/id&gt;
            &lt;property name=&quot;fname&quot; type=&quot;java.lang.String&quot;&gt;
                &lt;column name=&quot;FNAME&quot; /&gt;
            &lt;/property&gt;
            &lt;property name=&quot;lname&quot; type=&quot;java.lang.String&quot;&gt;
                &lt;column name=&quot;LNAME&quot; /&gt;
            &lt;/property&gt;
        &lt;/class&gt;
    &lt;/hibernate-mapping&gt;

This is my class file:
    
    public class StoreData {
        public static void main(String[] args) {
        	Configuration cfg=new Configuration();
        	cfg.configure(&quot;hibernate.cfg.xml&quot;);
        	SessionFactory factory=cfg.buildSessionFactory();
        	Session session=factory.openSession();
        	org.hibernate.Transaction t=session.beginTransaction();
        	Employee e=new Employee();
        	e.setId(1);
        	e.setFname(&quot;yogesh&quot;);
        	e.setLname(&quot;Meghnani&quot;);
        	session.persist(e);
        	t.commit();
        	
        }
    }



Invalid syntax error &quot;type= MyISAM&quot; in DDL generated by Hibernate

I am converting some of my Java code to Kotlin and I do not quite understand how to instantiate interfaces that are defined in Kotlin code. As an example, I have an interface (defined in Java code):

    public interface MyInterface {
        void onLocationMeasured(Location location);
    }

And then further in my Kotlin code I instantiate this interface:

    val myObj = new MyInterface { Log.d(&quot;...&quot;, &quot;...&quot;) }

and it works fine. However, when I convert MyInterface to Kotlin:

    interface MyInterface {
        fun onLocationMeasured(location: Location)
    }

I get an error message: `Interface MyListener does not have constructors` when I try to instantiate it - though it seems to me that nothing has changed except syntax. Do I misunderstand how interfaces work in Kotlin?

Kotlin: Interface ... does not have constructors

Is there a way in Java to apply a function to all the elements of a `Stream` without breaking the `Stream` chain? I know I can call `forEach`, but that method returns a `void`, not a `Stream`.

Java 8 apply function to all elements of Stream without breaking stream chain

As per the following link document: [Java HashMap Implementation](https://dzone.com/articles/hashmap-performance)
            
I&#39;m confused with the implementation of `HashMap` (or rather, an enhancement in `HashMap`). My queries are:

**Firstly**

    static final int TREEIFY_THRESHOLD = 8;
    static final int UNTREEIFY_THRESHOLD = 6;
    static final int MIN_TREEIFY_CAPACITY = 64;

Why and how are these constants used? **I want some clear examples for this.**
How they are achieving a performance gain with this?

**Secondly**

If you see the source code of `HashMap` in JDK, you will find the following static inner class:
            
    static final class TreeNode&lt;K, V&gt; extends java.util.LinkedHashMap.Entry&lt;K, V&gt; {
        HashMap.TreeNode&lt;K, V&gt; parent;
        HashMap.TreeNode&lt;K, V&gt; left;
        HashMap.TreeNode&lt;K, V&gt; right;
        HashMap.TreeNode&lt;K, V&gt; prev;
        boolean red;
            
        TreeNode(int arg0, K arg1, V arg2, HashMap.Node&lt;K, V&gt; arg3) {
            super(arg0, arg1, arg2, arg3);
        }
            
        final HashMap.TreeNode&lt;K, V&gt; root() {
            HashMap.TreeNode arg0 = this;
            
            while (true) {
                HashMap.TreeNode arg1 = arg0.parent;
                if (arg0.parent == null) {
                    return arg0;
                }
            
                arg0 = arg1;
            }
        }
        //...
    }

How is it used? **I just want an explanation of the algorithm**. 

Content Type	Original Author	Original Content on Stackoverflow
Question	Rakib	View Question on Stackoverflow
Solution 1 - Java	Thilo	View Answer on Stackoverflow

Java Reflection: Difference between getMethods() and getDeclaredMethods()

Java Problem Overview

Java Solutions

Solution 1 - Java

Docker compose how to mount path from one to another container?

How to customize the tooltip of a Chart.js 2.0 Doughnut Chart?

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