The following example demonstrates using the file.exists() method of the File class to detect whether a file exists:
/* author by w3cschool.cc Main.java */import java.io.File;public class Main { public static void main(String[] args) { File file = new File("C:/java.txt"); System.out.println(file.exists()); }}
The output result of running the above code is (if it exists in your C drive File java.txt):
true
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