heshanthenura / easyjava

Easy Java

EasyJava is a straightforward Java library crafted to simplify everyday tasks for Java developers. It provides convenient methods for effortless operation execution, helping streamline your workflow with ease.

More details on Sonatype page

for Maven projects

<dependency>
    <groupId>io.github.heshanthenura</groupId>
    <artifactId>easy-java</artifactId>
    <version>0.2</version>
</dependency>

for Gradle projects

implementation group: 'io.github.heshanthenura', name: 'easy-java', version: '0.2'

for other build tools check this site.

Menu

File Manipulation

User Input

Generating a Range of Integers

Generating Random Numbers

• Integer
• Double
• Float

Generating a Random Boolean Value

Getting a Random Element from a List

Usage

File Manipulation

• Read File:

// Read the content of a text file into a single string
String fileContent = EasyJava.readFile("example.txt");

This method reads the content of a text file and returns it as a single string.

• Append to File:

// Append content to a text file
String contentToAppend = "New content to append";
EasyJava.appendToFile("example.txt", contentToAppend);

This method appends the specified content to the end of a text file.

• Read Lines:

// Read the content of a text file line by line into a list of strings
List<String> fileLines = EasyJava.readLines("example.txt");

This method reads the content of a text file line by line and returns it as a list of strings.

• Prepend to File:

// Prepend content to a text file
String contentToPrepend = "New content to prepend";
EasyJava.prependToFile("example.txt", contentToPrepend);

This method prepends the specified content to the beginning of a text file.

User Input

// Simple input prompt
String userInput = (String) EasyJava.input();

// Input prompt with a custom message
String name = (String) EasyJava.input("Enter your name: ");

// Input prompt with a custom message and delimiter
List<String> words = (List<String>) EasyJava.input("Enter words separated by commas: ", ",");

• If no arguments are provided, the method prompts the user for input without displaying any message or using a delimiter.
• With a single argument, the method uses it as the prompt message.
• With two arguments, the first argument is the prompt message, and the second is the delimiter for splitting the input string.

Generating a Range of Integers

List<Integer> numbers = EasyJava.range(start);
easyJava.range(10);
// Output: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

List<Integer> numbers = EasyJava.range(start, end);
easyJava.range(0,5);
// Output: [0, 1, 2, 3, 4]

easyJava.range(5,0);
// Output: [5, 4, 3, 2, 1]

List<Integer> numbers = EasyJava.range(start, end, step);
easyJava.range(0, 10, 2);
// Output: [0, 2, 4, 6, 8]

easyJava.range(20, 0, -3);
// Output: [20, 17, 14, 11, 8, 5, 2]

Generates a list of integers within the specified range.

• start: the starting value of the range (inclusive)
• end: the ending value of the range (exclusive) (optional)
• step: the step size between consecutive integers (optional)

Generating Random Numbers

Integer

int randomNumber = EasyJava.randomInt(min, max);

Generates a random integer within the specified range.

• min: the minimum value of the range (inclusive)
• max: the maximum value of the range (inclusive)

Double

double randomDouble = EasyJava.randomDouble(min, max);

Generates a random double within the specified range.

• min: the minimum value of the range (inclusive)
• max: the maximum value of the range (inclusive)

Float

float randomFloat = EasyJava.randomFloat(min, max);

Generates a random float within the specified range.

• min: the minimum value of the range (inclusive)
• max: the maximum value of the range (inclusive)

Generating a Random Boolean Value

boolean randomBoolean = EasyJava.randomBoolean();

Generates a random boolean value (true or false).

Getting a Random Element from a List

List<T> list = ...; // Your list
T randomElement = EasyJava.getRandomElement(list);

Returns a random element from the given list.

• list: the list from which to select a random element