Java's way of distinguishing between absolute and relative paths

This article illustrates how Java distinguishes between absolute and relative paths. Share with you for your reference. Specific analysis is as follows:

The difference here is the directory path

Such as:

/ opt/deve/tomcat/bin
C: \ deve \ tomcat \ bin
Both are absolute directory paths

bin
Bin/data
Bin \ data
Relative directory paths

Through observation, discover the rule

Everything that starts with/or contains \ or // is an absolute path or
Everything that starts with/or contains: is an absolute path
The opposite is the relative path

Introduce several methods:

startsWith
public class Stringutil {
 public static void main(String[] args) {
  String path = "/opt/bin";
  System.out.println(path.startsWith("/"));
 }
}

Results: true,
indexOf

Final results:

public boolean isAbsolutePath(String path) {
 if (path.startsWith("/") || path.indexOf(":") > 0) {
  return true;
 }
 return false;
}

I hope this article has been helpful to your Java programming.