Java でファイルが存在するかどうかをチェックする

import java.io.File;

public class Main {
    public static void main(String[] args) {
       
    File file1 = new File("sampleFile.txt");
    File file2 = new File("xyz.txt");

    //Checks if file1 exists
    if(file1.exists() && !file1.isDirectory()){
        System.out.println(file1 + " Exists");
    }else{
        System.out.println(file1 + " Does not exists");
    }

    //Checks if file2 exists
    if(file2.exists()){
        System.out.println(file2 + " Exists");
    }else{
        System.out.println(file2 + " Does not exists");
    }
     
    }
}

sampleFile.txt Exists
xyz.txt Does not exists

import java.io.File;

public class Main {

    public static void main(String[] args) {
        File file = new File("sampleFile.txt");
        File directory = new File("E:/Work/java");

         if(file.isFile()){
                    System.out.println(file + " Exists");
                }else{
                     System.out.println(file + " Do not Exist or it is a directory");
                }

        if(directory.isFile()){
               System.out.println(directory + " Exists");
                }else{
                     System.out.println(directory + " Do not Exist or it is a directory");
                }
    }
}

sampleFile.txt Exists
E:\Work\java Do not Exist or it is a directory

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

public class Main {

    public static void main(String[] args) {
       Path path = Paths.get("sampleFile.txt");

    if(path.toFile().isFile()){
        System.out.println(path + " Exists");
    }else{
        
        System.out.println(path + " Do not Exists");
    }
    }
}

sampleFile.txt Exists