Java - abs() Method - The method gives the absolute value of the argument. The argument can be int, float, long, double, short, byte.
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Since absolute path is static and platform dependent, it is a bad practice to locate a file using absolute path inside your program, since you will lose the ability to reuse your program on different machines and platforms.
A relative path is a path which doesn’t start with the root element of the file system. It is simply the path needed in order to locate the file from within the current directory of your program. It is not complete and needs to be combined with the current directory path in order to reach the requested file.
The java.lang.Math.abs () returns the absolute value of a given argument. If the argument is not negative, the argument is returned. If the argument is negative, the negation of the argument is returned.
In Java, we can find the absolute value by using the abs () method. It belongs to java.lang.Math class. It is an overloaded method. It returns the absolute value of an argument. The argument can be of any type such as int, float, double, long, and short. The signature of the method is:
getPath(): This file path method returns the abstract pathname as String. If String pathname is used to create Fileobject, it simply returns the pathname argument. If URI is used as argument then it removes the protocol and returns the file name.
In general, a path is a way to refer to a particular file or directory in a file system, there are 2 types of path: absolute and relative. One should understand the difference between these 2 types in order to successfully locate a file within a program.
getCanonicalPath(): A canonical path is simply a unique absolute path e.g. the canonical path of pdf-sample.pdf is: Normally, this method resolves the “.” and “..” characters and return the final path, it’s efficient for comparing 2 file paths.
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