njofce

class Buffer<T> {

    List<T> items;
    private int capacity;

    private Lock pcLock = new ReentrantLock();

    Buffer(int capacity){
        this.items = new ArrayList<>(capacity);
        this.capacity = capacity;

njofce

public class Buffer<T> {

    List<T> items;
    private int capacity;

    private Lock canProduce = new ReentrantLock();
    private Lock canConsume= new ReentrantLock();

    public Buffer(int capacity){
        this.items = new ArrayList<>(capacity);

njofce

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class Buffer<T> {

    List<T> items;
    private int capacity;

njofce

public class Buffer<T> {

    List<T> items;
    private int capacity;

    public Buffer(int capacity){
        this.items = new ArrayList<>(capacity);
        this.capacity = capacity;
    }

njofce

<div *ngIf="treeNode">
  <cdk-virtual-scroll-viewport 
      [style.height.px]="500"
      style="width: 900px; margin-top: 10px;"
      minBufferPx="200"
      maxBufferPx="350"
      itemSize="20">
    
    <div *cdkVirtualFor="let ch of flatTree; templateCacheSize: 20">
      <app-tree-child [node]="ch"></app-tree-child>

njofce

  getFlatTree(): TreeNode[] {
    return this.flatTreeRecursive(this._root);
  }

  private flatTreeRecursive(root: TreeNode): TreeNode[] {
    let res = [];
    for (let c of root.children) {
      res.push(c);
      res = res.concat(this.flatTreeRecursive(c));
    }

njofce

import { Component, OnInit, Input, SimpleChanges } from '@angular/core';
import { Tree } from '../models/tree';
import {TreeNode} from '../models/tree-models';

@Component({
  selector: 'app-tree-parent',
  template:`
    <h2>Tree data visualized </h2>

    <div *ngIf="treeNode"> 

njofce

import { Component, OnInit, Input } from '@angular/core';
import { TreeNode } from '../models/tree-models';

@Component({
  selector: 'app-tree-child',
  template: `
    <div class="child-contents-container">
      <div>
        <p>{{node.data}}</p>
      <div>

njofce

<div class="child-contents-container">
  <div>
    <p>{{node.data}}</p>
  <div>
  <div class="children-container">
    <app-tree-child *ngFor="let ch of node.children" [node]="ch"></app-tree-child>    
  </div>

</div>

njofce

export class TreeNode<T> {

  private _data: T;
  private _parent: TreeNode<T>;
  private _children: TreeNode<T>[];

  constructor(data: T, parent: TreeNode<T>, children: TreeNode<T>[] = []) {
    this._data = data;
    this._parent = parent;
    this._children = children;