JAVA all works

semester-4/ОПJа/lb-2/task2/.gitignore

@@ -0,0 +1,202 @@
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+
+# Created by https://www.gitignore.io/api/git,java,maven,eclipse,windows
+
+### Eclipse ###
+
+.metadata
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.loadpath
+.recommenders
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# PyDev specific (Python IDE for Eclipse)
+*.pydevproject
+
+# CDT-specific (C/C++ Development Tooling)
+.cproject
+
+# CDT- autotools
+.autotools
+
+# Java annotation processor (APT)
+.factorypath
+
+# PDT-specific (PHP Development Tools)
+.buildpath
+
+# sbteclipse plugin
+.target
+
+# Tern plugin
+.tern-project
+
+# TeXlipse plugin
+.texlipse
+
+# STS (Spring Tool Suite)
+.springBeans
+
+# Code Recommenders
+.recommenders/
+
+# Annotation Processing
+.apt_generated/
+
+# Scala IDE specific (Scala & Java development for Eclipse)
+.cache-main
+.scala_dependencies
+.worksheet
+
+### Eclipse Patch ###
+# Eclipse Core
+.project
+
+# JDT-specific (Eclipse Java Development Tools)
+.classpath
+
+# Annotation Processing
+.apt_generated
+
+.sts4-cache/
+
+### Git ###
+# Created by git for backups. To disable backups in Git:
+# $ git config --global mergetool.keepBackup false
+*.orig
+
+# Created by git when using merge tools for conflicts
+*.BACKUP.*
+*.BASE.*
+*.LOCAL.*
+*.REMOTE.*
+*_BACKUP_*.txt
+*_BASE_*.txt
+*_LOCAL_*.txt
+*_REMOTE_*.txt
+
+### Java ###
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+### Maven ###
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Some additional ignores (sort later)
+*.DS_Store
+*.sw?
+.#*
+*#
+*~
+.classpath
+.project
+.settings
+bin
+build
+target
+dependency-reduced-pom.xml
+*.sublime-*
+/scratch
+.gradle
+README.html
+*.iml
+.idea
+.exercism
+

semester-4/ОПJа/lb-2/task2/src/main/java/ua/nure/jfn/task2/ArrayImpl.java

@@ -1,6 +1,7 @@
 package ua.nure.jfn.task2;
 
 import java.util.Iterator;
+import java.util.NoSuchElementException;
 
 public class ArrayImpl<T> implements Array<T> {
 
@@ -11,10 +12,10 @@ public class ArrayImpl<T> implements Array<T> {
 	}
 
 	public ArrayImpl(Container<T> container) {
-		this.elements = new Object[container.size() + 1];
+		elements = new Object[container.size() + 1];
 
 		for (T element : container)
-			this.add(element);
+			add(element);
 	}
 
 	@Override
@@ -43,7 +44,7 @@ public class ArrayImpl<T> implements Array<T> {
 
 	@Override
 	public int size() {
-		return this.size;
+		return size;
 	}
 
 	@SuppressWarnings("unchecked")
@@ -127,7 +128,7 @@ public class ArrayImpl<T> implements Array<T> {
 		@Override
 		public T next() {
 			if (!hasNext())
-				throw new java.util.NoSuchElementException();
+				throw new NoSuchElementException();
 
 			lastReturnedIndex = currentIndex;
 			return (T) elements[currentIndex++];

semester-4/ОПJа/lb-2/task2/src/main/java/ua/nure/jfn/task2/ListImpl.java

@@ -1,6 +1,7 @@
 package ua.nure.jfn.task2;
 
 import java.util.Iterator;
+import java.util.NoSuchElementException;
 
 public class ListImpl<T> implements List<T> {
 
@@ -114,7 +115,7 @@ public class ListImpl<T> implements List<T> {
 	@Override
 	public void removeFirst() {
 		if (head == null)
-			throw new java.util.NoSuchElementException();
+			throw new NoSuchElementException();
 
 		head = head.next;
 		size--;
@@ -123,7 +124,7 @@ public class ListImpl<T> implements List<T> {
 	@Override
 	public void removeLast() {
 		if (head == null)
-			throw new java.util.NoSuchElementException();
+			throw new NoSuchElementException();
 
 		if (head.isLast())
 			head = null;
@@ -137,7 +138,7 @@ public class ListImpl<T> implements List<T> {
 	@Override
 	public T getFirst() {
 		if (head == null)
-			throw new java.util.NoSuchElementException();
+			throw new NoSuchElementException();
 
 		return (T) head.data;
 	}
@@ -146,12 +147,12 @@ public class ListImpl<T> implements List<T> {
 	@Override
 	public T getLast() {
 		if (head == null)
-			throw new java.util.NoSuchElementException();
+			throw new NoSuchElementException();
 
 		if (head.isLast())
 			return (T) head.data;
-		else
-			return (T) head.getLast();
+
+		return (T) head.getLast();
 	}
 
 	@SuppressWarnings("unchecked")
@@ -162,7 +163,8 @@ public class ListImpl<T> implements List<T> {
 
 		if (head.data != null && head.data.equals(element))
 			return (T) head.data;
-		else if (head.next != null)
+
+		if (head.next != null)
 			return (T) head.search(element);
 
 		return null;
@@ -178,9 +180,8 @@ public class ListImpl<T> implements List<T> {
 			return true;
 		}
 
-		if (head.next != null) {
+		if (head.next != null)
 			return head.remove(element);
-		}
 
 		return false;
 	}
@@ -224,7 +225,7 @@ public class ListImpl<T> implements List<T> {
 		@Override
 		public T next() {
 			if (!hasNext())
-				throw new java.util.NoSuchElementException();
+				throw new NoSuchElementException();
 
 			prev = curr;
 			curr = curr.next;

semester-4/ОПJа/lb-2/task2/src/main/java/ua/nure/jfn/task2/StreamImpl.java

@@ -20,10 +20,9 @@ public class StreamImpl<T> implements Stream<T> {
 		public Container<?> apply(Container<?> input) {
 			Array<T> newContainer = new ArrayImpl<T>();
 
-			for (Object element : input) {
+			for (Object element : input)
 				if (predicate.apply((T) element))
 					newContainer.add((T) element);
-			}
 
 			return newContainer;
 		}
@@ -41,9 +40,8 @@ public class StreamImpl<T> implements Stream<T> {
 		public Container<?> apply(Container<?> input) {
 			Array<R> newContainer = new ArrayImpl<R>();
 
-			for (Object element : input) {
+			for (Object element : input)
 				newContainer.add(function.apply((T) element));
-			}
 
 			return newContainer;
 		}
@@ -61,14 +59,14 @@ public class StreamImpl<T> implements Stream<T> {
 
 	@Override
 	public Stream<T> filter(Function<? super T, Boolean> predicate) {
-		Array<Operation> newOperations = new ArrayImpl<>(this.operations);
+		Array<Operation> newOperations = new ArrayImpl<>(operations);
 		newOperations.add(new FilterOperation<>(predicate));
 		return new StreamImpl<T>(source, newOperations);
 	}
 
 	@Override
 	public <R> Stream<R> map(Function<? super T, ? extends R> function) {
-		Array<Operation> newOperations = new ArrayImpl<>(this.operations);
+		Array<Operation> newOperations = new ArrayImpl<>(operations);
 		newOperations.add(new MapOperation<>(function));
 		return new StreamImpl<R>(source, newOperations);
 	}
@@ -88,13 +86,10 @@ public class StreamImpl<T> implements Stream<T> {
 	@SuppressWarnings("unchecked")
 	@Override
 	public void forEach(Action<? super T> action) {
-		for (Operation operation : operations) {
+		for (Operation operation : operations)
 			source = operation.apply(source);
-		}
 
-		for (Object element : source) {
+		for (Object element : source)
 			action.perform((T) element);
-		}
 	}
-
 }