Get Current Directory Using Java

This commit is contained in:
sreekanth.nair 2019-07-19 11:46:05 +05:30
parent 2e522b3ab8
commit c9599313c8
2 changed files with 74 additions and 0 deletions

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package com.baeldung.core.pwd;
import java.io.File;
import java.nio.file.FileSystems;
import java.nio.file.Paths;
public final class CurrentDirectoryFetcher {
public static void main(String[] args) {
System.out.printf("Current Directory Using Java System API: %s%n", currentDirectoryUsingSystemProperties());
System.out.printf("Current Directory Using Java IO File API: %s%n", currentDirectoryUsingFile());
System.out.printf("Current Directory Using Java NIO FileSystems API: %s%n", currentDirectoryUsingFileSystems());
System.out.printf("Current Directory Using Java NIO Paths API: %s%n", currentDirectoryUsingPaths());
}
public static String currentDirectoryUsingSystemProperties() {
return System.getProperty("user.dir");
}
public static String currentDirectoryUsingPaths() {
return Paths.get("")
.toAbsolutePath()
.toString();
}
public static String currentDirectoryUsingFileSystems() {
return FileSystems.getDefault()
.getPath("")
.toAbsolutePath()
.toString();
}
public static String currentDirectoryUsingFile() {
return new File("").getAbsolutePath();
}
}

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package com.baeldung.core.pwd;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class CurrentDirectoryFetcherTest {
private static final String CURRENT_DIR = "core-java-os";
@Test
public void whenUsingSystemProperties_thenReturnCurrentDirectory() {
assertTrue(CurrentDirectoryFetcher.currentDirectoryUsingSystemProperties()
.endsWith(CURRENT_DIR));
}
@Test
public void whenUsingJavaNioPaths_thenReturnCurrentDirectory() {
assertTrue(CurrentDirectoryFetcher.currentDirectoryUsingPaths()
.endsWith(CURRENT_DIR));
}
@Test
public void whenUsingJavaNioFileSystems_thenReturnCurrentDirectory() {
assertTrue(CurrentDirectoryFetcher.currentDirectoryUsingFileSystems()
.endsWith(CURRENT_DIR));
}
@Test
public void whenUsingJavaIoFile_thenReturnCurrentDirectory() {
assertTrue(CurrentDirectoryFetcher.currentDirectoryUsingFile()
.endsWith(CURRENT_DIR));
}
}