Java 9 - Effectively Final Variables In try-with-resources

thangpt2019 · thangpt2019 · commit a995b35da9e1 · 2017-10-22T11:44:54.000+07:00
diff --git a/java9-language-features-examples/src/test/java/com/howtoprogram/http2client/Java9HTTP2ClientTest.java b/java9-language-features-examples/src/test/java/com/howtoprogram/http2client/Java9HTTP2ClientTest.java
@@ -1,4 +1,4 @@
-package com.howtoprogram.java9ex;
+package com.howtoprogram.http2client;
 
 
 import jdk.incubator.http.HttpClient;
diff --git a/java9-language-features-examples/src/test/java/com/howtoprogram/java9ex/TryWithResourceTest.java b/java9-language-features-examples/src/test/java/com/howtoprogram/java9ex/TryWithResourceTest.java
@@ -0,0 +1,59 @@
+package com.howtoprogram.java9ex;
+
+import org.junit.jupiter.api.Test;
+
+import java.io.*;
+import java.nio.Buffer;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public class TryWithResourceTest {
+
+    @Test
+    public void tryWithResourceTestPriorJava9() throws IOException {
+
+        File appConfig = new File("src/test/resources/application-backup.properties");
+        File appConfigProd = new File("src/test/resources/application-prod.properties");
+
+        try (BufferedReader prodBr = new BufferedReader(new FileReader(appConfigProd));
+             BufferedWriter backupBw = new BufferedWriter(new FileWriter(appConfig))) {
+            String line;
+            while (null != (line = prodBr.readLine())) {
+                String prodLine = "prod." + line;
+                backupBw.write(prodLine);
+
+            }
+        }
+    }
+
+    @Test
+    public void tryWithResourceTest() throws IOException {
+
+        File appConfig = new File("src/test/resources/application-backup.properties");
+        BufferedWriter backupBw = new BufferedWriter(new FileWriter(appConfig));
+
+        File appConfigProd = new File("src/test/resources/application-prod.properties");
+        try (BufferedReader prodBr = new BufferedReader(new FileReader(appConfigProd))) {
+            String line;
+            while (null != (line = prodBr.readLine())) {
+                String prodLine = "prod." + line;
+                backupBw.write(prodLine);
+
+            }
+        }
+
+        File appConfigQa = new File("src/test/resources/application-qa.properties");
+        try (backupBw;
+             BufferedReader brQA = new BufferedReader(new FileReader(appConfigQa))) {
+
+            String line;
+            while (null != (line = brQA.readLine())) {
+                String qaLine = "qa." + line;
+                backupBw.write(qaLine);
+                backupBw.newLine();
+            }
+
+        }
+
+    }
+}
diff --git a/java9-language-features-examples/src/test/resources/application-backup.properties b/java9-language-features-examples/src/test/resources/application-backup.properties
@@ -0,0 +1 @@
+prod.email=prod@gmail.com
diff --git a/java9-language-features-examples/src/test/resources/application-prod.properties b/java9-language-features-examples/src/test/resources/application-prod.properties
@@ -0,0 +1 @@
+email=prod@gmail.com
diff --git a/java9-language-features-examples/src/test/resources/application-qa.properties b/java9-language-features-examples/src/test/resources/application-qa.properties
@@ -0,0 +1 @@
+email=qa@gmail.com
diff --git a/java9-language-features-examples/src/test/resources/application.properties b/java9-language-features-examples/src/test/resources/application.properties
@@ -0,0 +1,3 @@
+app.name=Java 9 New Features
+qa.email=qa@gmail.com
+prod.email=prod@gmail.com

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-package com.howtoprogram.java9ex;`
	`1`	`+package com.howtoprogram.http2client;`
`2`	`2`
`3`	`3`
`4`	`4`	`import jdk.incubator.http.HttpClient;`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+app.name=Java 9 New Features`
	`2`	`+qa.email=qa@gmail.com`
	`3`	`+prod.email=prod@gmail.com`