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Java Exercises: Find the size of a specified file

Java Basic: Exercise-45 with Solution

Write a Java program to find the size of a specified file.

Pictorial Presentation:

Java: Find the size of a specified file

Sample Solution:

Java Code:

import java.util.Scanner;
import java.io.File;
public class Exercise45 {

 public static void main(String[] args) {
  System.out.println("/home/students/abc.txt  : " + new File("abc.txt").length() + " bytes");
  System.out.println("/home/students/test.txt : " + new File("test.txt").length() + " bytes");
 }
}

Sample Output:

/home/students/abc.txt  : 0 bytes                                      
/home/students/test.txt : 0 bytes 

Flowchart:

Flowchart: Java exercises: Find the size of a specified file

Java Code Editor:

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Java: Tips of the Day

countOccurrences

Counts the occurrences of a value in an array.

Use Arrays.stream().filter().count() to count total number of values that equals the specified value.

public static long countOccurrences(int[] numbers, int value) {
    return Arrays.stream(numbers)
            .filter(number -> number == value)
            .count();
}

Ref: https://bit.ly/3kCAgLb