John-Paul-R

doing an operation on two numbers will give you a different output type depending on what the types of the operands are.

• an "operation" is something like "addition" (+) or division (/).
• an "operand" is one of the things you're doing the operation on.

for example, in 3 - 2, 3 is the first operand, 2 is the second operand, and subtraction (-) is the operation.

For our case, we're working with 2 types:

John-Paul-R

I think what might clarify is how events work. (Note, this is a long answer, tailored to your example. For something shorter, but less specific, see https://stackoverflow.com/a/33964976/8105643)

The event keyword is really just a nice syntax for setting up an EventHandler Delegate.

Now we understand that events are just special syntax delegates, we can explain how subscribing to an event actually works, and show how the two examples you gave are actually quite similar:

In your first example, you have essentially this situation:

public class DelegateCombineExample {

John-Paul-R

Keybase proof

I hereby claim:

• I am John-Paul-R on github.
• I am john_paul_r (https://keybase.io/john_paul_r) on keybase.
• I have a public key whose fingerprint is 522F F5DE A709 6C4A AD1A 3BEC 7B98 1822 047F E953

To claim this, I am signing this object:

John-Paul-R

<Project Sdk="Microsoft.NET.Sdk">

    <PropertyGroup>
        <OutputType>Exe</OutputType>
        <TargetFramework>net7.0</TargetFramework>
        <ImplicitUsings>enable</ImplicitUsings>
        <Nullable>enable</Nullable>
    </PropertyGroup>

    <ItemGroup>

John-Paul-R

Fabric Mod List

This page contains a list of the current Minecraft Fabric mods. (As of 2022-11-27 00:31:01 Timezone: UTC+0000 (GMT))

To search for mods by name, category, or download count, visit the website, fibermc.com!

Note: You can view a mod's source files by following the "Source" link on its CurseForge or Modrinth page, assuming that the mod's creator has made such files public.

There are currently 9508 mods in this list.

John-Paul-R

type FilteredKeys<T, U> = { [P in keyof T]: T[P] extends U ? P : never }[keyof T];

enum Color {
    Red, Green, Blue,
}

type PropsOfType<T, U> = {
    [K in FilteredKeys<T, U>]: T[K]
};

John-Paul-R

using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Engines;
using BenchmarkDotNet.Jobs;
using BenchmarkDotNet.Running;

John-Paul-R

using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Collections.Immutable;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Engines;
using BenchmarkDotNet.Running;

namespace Bench_Dictionaries
{

John-Paul-R

public class TopCommand implements Command<ServerCommandSource> {
    @Override
    public int run(CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
        ServerCommandSource source = context.getSource();
        ServerPlayerEntity player = source.getPlayer();
        World world = source.getWorld();
        Vec3d playerPos = player.getPos();

        int new_y;
        double new_x = playerPos.x;

John-Paul-R

package com.packagename.access;

import net.minecraft.client.gui.ClientChatListener;
import net.minecraft.network.MessageType;

public interface InGameHudAccess {
    void registerChatListener(MessageType messageType, ClientChatListener listener);
}