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mLine 3:
Line 3: − sudo apt-get update+ − sudo apt-get install oracle-java8-installer</nowiki>+ Line 791:
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→Files
===With apt===
===With apt===
<nowiki>sudo apt-add-repository ppa:webupd8team/java
<nowiki>sudo apt-add-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer</nowiki>
Also ensure your JAVA_HOME variable has been set to:
Also ensure your JAVA_HOME variable has been set to:
===Reading text files===
===Reading text files===
See: [https://github.com/rafahsolis/javaTutorial/blob/master/ReadTextFile.java ReadTextFile.java]
See: [https://github.com/rafahsolis/javaTutorial/blob/master/ReadTextFile.java ReadTextFile.java]
=== List files in dir ===
<syntaxhighlight lang="java">
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.function.Predicate;
Path currentDirectory = Paths.get(".");
Files.list(currentDirectory).forEach(System.out::println);
int levels = 5;
Files.walk(currentDirectory, levels).forEach(System.out::println);
// list only .java files
Predicate<? super Path> predicate = path -> String.valueOf(path).contains(".java");
Files.walk(currentDirectory, levels).filter(predicate).forEach(System.out::println);
// Search files
BiPredicate<Path, BasicFileAttributes> javaMatcher = (path, attributes) -> String.valueOf(path).contains(".java");
Files.find(currentDirectory, levels, javaMatcher).forEach(System.out::println);
BiPredicate<Path, BasicFileAttributes> dirMatcher = (path, attributes) -> attributes.isDirectory();
Files.find(currentDirectory, levels, dirMatcher).forEach(System.out::println);
</syntaxhighlight>
===Reading files (Try-With-Resources)===
===Reading files (Try-With-Resources)===
This requires at least Java 7<br />
This requires at least Java 7<br />
</syntaxhighlight>
</syntaxhighlight>
=== catch multiple exceptions ===
===catch multiple exceptions===
<syntaxhighlight lang="java">
<syntaxhighlight lang="java">
try {
try {