What are the key differences in syntax between Java and JavaScript?

What are the key differences in syntax between Java and JavaScript?

Java is a statically typed language, while JavaScript is dynamically typed. This means that in Java, you must declare the type of a variable, whereas in JavaScript, the type is determined at runtime.

Can you give me examples of variable declarations in both languages?

Sure! In Java, you would declare a variable like this: int number = 5;. In JavaScript, it would be: let number = 5; or var number = 5;.

What about functions? How do they differ?

In Java, a function is defined within a class and has a specific return type, like this: public int add(int a, int b) { return a + b; }. In JavaScript, a function can be defined more flexibly, like this: function add(a, b) { return a + b; }.

Are there any differences in how loops are structured?

Yes! Both languages support for, while, and do-while loops, but the syntax can vary slightly. For example, a for loop in Java looks like this: for(int i = 0; i < 10; i++) { ... }, while in JavaScript, it looks the same but can also use let or const for variable declaration.