2.2.2 從 Path 中獲取信息

Demo:

import java.nio.file.Path;
import java.nio.file.Paths;

public class PathInfoTest {
    
    public static void main(String[] args) {
        
        // 創建絕對路徑（位置）
        Path listing = Paths.get("/Users/jinxing/Documents/pathtest");
        
        System.out.println("File Name: " +
                // 位置（文件）名稱
                listing.getFileName());
        
        System.out.println("Number of Name Elements in the Path: " +
                // （位置）路徑層級 / 元素數量
                listing.getNameCount());
        
        System.out.println("Parent Path: " +
                // 上級位置 / 上級文件路徑
                listing.getParent());
        
        System.out.println("Root of Path: " +
                // 跟位置（路徑）
                listing.getRoot());
        
        System.out.println("Subpath from Root,2 elements deep: " +
                // 截斷路徑——從第1個反斜杠開始截取到第3個反斜杠——反斜杠計數從0開始——結果不包含頭尾反斜杠
                // /Users/jinxing/Documents/pathtest --> jinxing/Documents
                listing.subpath(1, 3));
        
    }

}

Ran As Java Application:

File Name: pathtest
Number of Name Elements in the Path: 4
Parent Path: /Users/jinxing/Documents
Root of Path: /
Subpath from Root,2 elements deep: jinxing/Documents