Miscellaneous

🔹 Official Rule in Java

A method can have only one return type.

Example:

public int getNumber() {
    return 10;   // ✅ One value
}

Here → return type is int → so it returns only one int value.

❓ Then how do people return multiple values?

In Java, you cannot return multiple values directly like this:

return 10, 20;   // ❌ Not allowed

But you can return one object that contains multiple values.

✅ Method 1: Return an Array

public int[] getNumbers() {
    return new int[]{10, 20, 30};
}

➡ Still returning one object (array)
➡ But that object contains multiple values

✅ Method 2: Return a Custom Class Object (Best Practice)

class Student {
    String name;
    int age;
}

public Student getStudent() {
    Student s = new Student();
    s.name = "Rumman";
    s.age = 25;
    return s;
}

➡ Returning one Student object
➡ That object holds multiple data members

🎯 Final Answer

👉 In Java, a method can return only one value.
👉 That value can be:

• Primitive type

• Object

• Array

• Collection

But technically → only one return value at a time.