".class expected" while attempting to use returned array

Question

I have a file scanner that reads from a file, a bunch of numbers (doubles) and stores them in tmpVal[]. I would then like to pass it to another method (make_abs_val) to get the absolute value of those numbers, so I can print it to a textview and/or write it to a file. What I'm not sure about is using the new array after I abs value it... I'm getting ".class expected" . . .

//get from file into first array
//this is all part of the mainActivity
while(fileScn.hasNext()){
            val = fileScn.nextDouble();
            tmpVal[arrayNum] = val;
            arrayNum++;

        }

// this is where I'm getting the error, not sure what to do.
make_it_abs(tmpVal[]);

//output to textview
for (int a = 0; a < arrayNum; a++ ){
            txtVw.setText(String.format("%.2f", /*Not sure what variable to use */) + "\n");
        }

//required method to get abs val
                             
public double[] make_it_abs(double orig[]){
        for(int i=0; i < orig.length; i++){
            orig[i] = Math.abs(orig[i]);
        }
        return orig;
    }

Elliott Frisch · Accepted Answer · 2015-10-08 03:31:32Z

1

Your method is preceeded by a raw for-loop (and you appear to want to index the array tmpVal, and you can use %n in a format for a new-line). Also, you pass a method an array with the name (no [] needed). Something like,

    make_it_abs(tmpVal);
    for (int a = 0; a < arrayNum; a++){
        txtVw.setText(String.format("%.2f%n", tmpVal[a]));
    }
} // <-- this is missing

//required method to get abs val                         
public double[] make_it_abs(double orig[]){
    for(int i=0; i < orig.length; i++){
        orig[i] = Math.abs(orig[i]);
    }
    return orig;
}

answered Oct 8, 2015 at 3:31

Elliott Frisch

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1 Comment

royalflush5 Over a year ago

That extra curly braces is there actually. I did just solve it myself, thanks though!

starkshang · Accepted Answer · 2015-10-08 03:31:59Z

0

Replace make_it_abs(tmpVal[]) with make_it_abs(tmpVal).

answered Oct 8, 2015 at 3:31

starkshang

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2 Comments

royalflush5 Over a year ago

Getting a "make_it_abs cannot be applied"

starkshang Over a year ago

Are you sure tmpVal's type is double[]?

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