Métodos readString() e writeString() da classe Files

Secao-5-Java-11-New-Features/aula-32/MeuProjetoLambda/MeuProjetoLambda.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

Secao-5-Java-11-New-Features/aula-32/MeuProjetoLambda/src/MinhaClasseLambda.java

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+import java.util.function.Function;
+
+public class MinhaClasseLambda {
+	public static void main(String[] args) {
+
+		String str = "Java Tópicos Avançados";
+
+		Function<String, String> concatena = (var s) -> s + ". ";
+
+
+	}
+}

Secao-5-Java-11-New-Features/aula-33/MeuProjetoFiles/MeuProjetoFiles.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

Secao-5-Java-11-New-Features/aula-33/MeuProjetoFiles/meutexto.txt

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+Curso Java T�picos Avan�ados

Secao-5-Java-11-New-Features/aula-33/MeuProjetoFiles/src/EscreveArquivo.java

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+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+
+public class EscreveArquivo {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+
+		String caminho = "/mnt/Conteúdos Estudantil (mnt)/Udemy Courses/Marco Aurélio Regis/java-topicos-avancados/Secao-5-Java-11-New-Features/aula-33/MeuProjetoFiles/meutexto.txt";
+		String meutexto = "Curso Java Tópicos Avançados";
+
+		/*********************************************************************************/
+
+		/*
+		 * Escreve fluxos de caracteres (string) em arquivo.
+		 * Maneira mais simples até então.
+		 * Indicado para poucas operações de escrita.
+		 */
+
+		try(FileWriter myWriter = new FileWriter(caminho)) {
+			myWriter.write(meutexto);
+		}
+		catch (IOException e) {
+		}
+
+		/*********************************************************************************/
+
+		/*
+		 * Grava o texto em uma stream de saída, usando mecanismo de buffer
+		 * para gravação mais eficiente de caracteres.
+		 */
+
+		try(BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(caminho))) {
+			bufferedWriter.write(meutexto);
+		}
+		catch (IOException e) {
+		}
+
+		/*********************************************************************************/
+
+		try {
+			Files.writeString(new File(caminho).toPath(), meutexto, StandardCharsets.ISO_8859_1);
+		}
+		catch (IOException e) {
+		}
+
+	}
+
+}

Secao-5-Java-11-New-Features/aula-33/MeuProjetoFiles/src/LeArquivo.java

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+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+
+public class LeArquivo {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+
+		String caminho = "meutexto.txt";
+
+		/*********************************************************************************/
+
+		/*
+		 * Leitura fluxos de caracteres (string).
+		 * Maneira mais simples até então.
+		 * Indicado para poucas operações de leitura.
+		 */
+
+		try(FileReader myReader = new FileReader(caminho)) {
+			int i;
+
+			while((i=myReader.read())!=-1) //-1 = EOF
+				System.out.print((char)i);
+
+			System.out.println();
+		}
+		catch (IOException e) {
+		}
+
+		/*********************************************************************************/
+
+		/*
+		 * Lê o texto em uma stream de entrada, usando mecanismo de buffer
+		 * para leitura mais eficiente de caracteres.
+		 */
+
+		try(BufferedReader bufferedReader = new BufferedReader(new FileReader(caminho))) {
+			String s;
+
+			while ((s = bufferedReader.readLine()) != null) { //null = EOF
+				System.out.println(s);
+			}
+		}
+		catch (IOException e) {
+		}
+
+		/*********************************************************************************/
+
+		String s;
+		try {
+			s = Files.readString(new File(caminho).toPath(), StandardCharsets.ISO_8859_1);
+			System.out.println(s);
+		}
+		catch (IOException e) {
+			System.out.println(e);
+		}
+
+
+	}
+
+}

meutexto.txt

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+Curso Java T�picos Avan�ados