Errors while using parseInt

[bboyinmartin]

I probably made a dumb mistake, but hey, that's why I'm posting on New To Java.

package practiceapplication;
import static java.lang.Integer.parseInt;

class Practiceapplication{
    
    int addition(String arguments[]){
        int sum = 0;
        
    if (arguments[0] == "+" ) 
        for(int x = 0; x < arguments.length; x++){
            arguments = new Integer.parseInt(arguments);
            sum += arguments[x]; 
     }
         return sum;
         
    if (arguments[0] == "*") {
        for(int x =0; x < arguments.length; x++){
            arguments = new Integer.parseInt(arguments);
        sum *= arguments[x];
        }
    } return sum;
    
    }
}

This is not the complete object, but you get the idea.
What am I doing wrong?
It says parseInt cannot be found.

[DarrylBurke]

The new keyword is used in conjunction with a constructor call, to instantiate and object. Not with a method call, as you have used it.

db

[DarrylBurke]

And after you've corrected that, read the API for the Integer class and see what parameter the parseInt(...) method expects, and what it returns. Hint: Neither of those are a String array.

db

[JosAH]

... and finally, you can't compare two Strings for equality with the == operator; use the String.equals( ... ) method instead.

kind regards,

Jos

[bboyinmartin]

You CAN use "==" operator when comparing two strings in Java 7 (java 1.7+)

Aren't they arrays? Since in the main method (which I didn't include in this code), I have declared "String[] arguments"

[gimbal2]

The only dumb mistake I see you making is not listening to the people who are giving you advice.

[bboyinmartin]

I'm just questioning them, dumbshit.

[gimbal2]

Gee name calling, now you're getting somewhere.

[bboyinmartin]

Why can't you just go bother someone else.

[Tolls]

You CAN use "==" operator when comparing two strings in Java 7 (java 1.7+)

It's no different in 7 than in 6 or earlier.
You should use equals() to compare objects (which is what Strings are) for equality, unless you want to know if they are the same object (ie the reference points to the same spot on the heap).

[bboyinmartin]

Okay, but how do I specify that I'm looking for an operator at arugments[0]?

Thanks for actually help me, unlike the other guy.

[DarrylBurke]

I'm just questioning them, dumbshit.

Banned for a day. You may continue this discussion tomorrow, hopefully with a better attitude.

db