Class Function Question

[JC0133]

This is for Java

I am just trying to double check if this is the correct way to create a function for a class and return that type.

//this is inside of the another class or Object2
public Object1 functionName(Object1 variable1) {

//Do I even need to do this below? Cause I am passing it in as a parameter
Object1 variable = new Oject1();


//code in here

return variable1; //returning Object1 variable1
}

 

[Ken g6]

1. Is this homework?
2. You misspelled "Oject1"
3. Did you mean "variable1" on the same line? If so the answer is no. Otherwise you're creating a second instance of Object1, which likely could make sense.

 

[JC0133]

This is not a homework assignment. I am just trying to understand.

 

[Markbnj]

I am just trying to double check if this is the correct way to create a function for a class and return that type.

You're not being terribly clear about what you want the method to do. Expand on what you mean by "create a function for a class and return that type."

Methods look like ...

[access] return-type method-name([argument-list]) { //... }

If that's too general you need to be more specific. Programming is about details, so give them 🙂.

 

[hf2046]

This is for Java

I am just trying to double check if this is the correct way to create a function for a class and return that type.

//this is inside of the another class or Object2
public Object1 functionName(Object1 variable1) {

//Do I even need to do this below? Cause I am passing it in as a parameter
Object1 variable = new Oject1();


//code in here

return variable1; //returning Object1 variable1
}

As the other posters mentioned, it really depends on what you're trying to accomplish.

Here's food for thought, it's about method parameters and whether Java is pass by reference or pass by value...

http://www.javaworld.com/javaworld/javaqa/2000-05/03-qa-0526-pass.html

 

[Borealis7]

its usually a bad idea to change the parameters you use, as Objects in java are passed by reference and any change you make in the function affects the parameter object. so you don't have to return it at all!

example:

Name n = new Name("Larry");
n.displayName(); // prints out "Larry"

changeNameToJim(n); // function that gets a Name and changes its name member to Jim
n.displayName(); // prints out "Jim"

see? you've changed the object without returning it in the function.

 

[trexpesto]

For god's sake, use normal variable and method names with no numbers.