What learning and educational resources about Java functions are recommended for novices?

Java functions are crucial for learning programming. Beginners can refer to the following resources: Tutorials and documentation: Java official tutorials, GeeksforGeeks tutorials Interactive courses: Codecademy, SoloLearn, Udacity Video tutorials: YouTube tutorials, Udemy courses Online exercises: LeetCode , HackerRank practical case: Create a function to calculate the sum of two numbers

Java Function: Learning and Educational Resources for Beginners

Java Functions are essential for learning a programming language, they encapsulate code, making it easy to reuse and maintain. As a newbie, it is especially important to find suitable resources to learn Java functions.

Tutorials and Documentation

• Official Java Tutorial: https://docs.oracle.com/javase/tutorial/java/javaOO/methods.html
• GeeksforGeeks Tutorial: https://www.geeksforgeeks.org/methods-in-java/

Interactive Course

• Codecademy: https://www.codecademy.com/learn/learn-java
• SoloLearn: https://www.sololearn.com/learning/Java/2254
• Udacity: https ://www.udacity.com/school-of-programming/learn/java-programming/

Video Tutorial

• Java on YouTube Function tutorial: https://www.youtube.com/results?search_query=java functions tutorial
• Udemy Java function course: https://www.udemy.com/topic/java-methods/

Online practice

• LeetCode Java function practice questions: https://leetcode.com/tag/java-methods
• HackerRank Java Function Challenge: https://www.hackerrank.com/domains/java/java-methods

Practical Case

If you need a practical case to understand Java function, consider creating a program like this:

public class Main {

    // 创建一个计算两个数字总和的函数
    public static int sum(int a, int b) {
        return a + b;
    }

    public static void main(String[] args) {
        // 调用函数来计算两个数的总和
        int result = sum(10, 20);

        // 打印函数的返回值
        System.out.println("数字的总和为：" + result);
    }
}

Output:

数字的总和为：30

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