2.2.1 创建一个 Path

Demo:

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

/**
 * @author jinxing
 * @系统 MAC OS X
 * @用例1 [使用]绝对路径
 * @用例2 [使用]相对路径
 * @用例3 相对路径[转换成]绝对路径
 * @结论1 [使用]相对路径，相对的是[..当前文件所属项目文件/下文件]；
 * @结论2 最后不论加否[/反斜杠]结果都一样；（不如不加）
 */
public class PathTest {
    
    // Path或Paths中的各种方法抛出的受检异常只有IOExcetion
    
    public static void main(String[] args) {
        
        // [使用]绝对路径
        Path useabs = Paths.get("/Users/jinxing/Documents/pathtest");
        Path useabsz = Paths.get("/Users/jinxing/Documents/pathtest/");
        // [使用]相对路径
        Path userel = Paths.get("..");
        Path userelz = Paths.get("../");
        // 相对路径[转换成]绝对路径
        Path relToAbs = userel.toAbsolutePath();
        Path relToAbsz = userelz.toAbsolutePath();
        
        // show
        System.out.println(useabs.toString());
        System.out.println(useabsz.toString());
        System.out.println(userel.toString());
        System.out.println(userelz.toString());
        System.out.println(relToAbs.toString());
        System.out.println(relToAbsz.toString());
    
    }
    
}

Ran As Java Application:

/Users/jinxing/Documents/pathtest
/Users/jinxing/Documents/pathtest
..
..
/Users/jinxing/Documents/workspace/nio.2/..
/Users/jinxing/Documents/workspace/nio.2/..