How to Combine Paths in Java Using Path Class or Custom Method?

Combining Paths in Java

The equivalent of System.IO.Path.Combine() in C#/.NET for Java is the Path class introduced in Java 7 and expanded upon in Java 8. The Path class provides a type-safe representation of a file system path, offering methods such as resolve to combine multiple path components.

To combine paths using Path, instantiate the Path object by providing multiple string arguments:

<code class="java">Path path = Paths.get("foo", "bar", "baz.txt");</code>

For environments prior to Java 7, you can use the File class:

<code class="java">File baseDirectory = new File("foo");
File subDirectory = new File(baseDirectory, "bar");
File fileInDirectory = new File(subDirectory, "baz.txt");</code>

Retrieve the path as a string by calling getPath():

<code class="java">String combinedPath = fileInDirectory.getPath();</code>

Alternatively, you can simulate the behavior of Path.Combine with the following custom method:

<code class="java">public static String combine(String path1, String path2) {
    File file1 = new File(path1);
    File file2 = new File(file1, path2);
    return file2.getPath();
}</code>

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