Method call expected when writing an array

Question

public class test {
public static void main(String[] args) {
    double[] d=new double[500];
    for (int i = 0; i <500 ; i++) {
        d[i]= Integer.MAX_VALUE;
    }
    boolean[] disco=new boolean[500];
    for (int i = 0; i <500 ; i++) {
        disco[i]= false;
    }
    disco(5)=true;
}

}

I get an "method call expected" error when trying to change a value in the disco array. Could someone explain to me why that is?

disco(5)=false; should be disco[5]=false; – bhspencer Apr 13 '18 at 19:29 — bhspencer, Apr 13 '18 at 19:29

score 1 · Answer 1 · answered Apr 13 '18 at 19:31

1

To access an item in an array at a particular position use the square brackets notation.

disco[5]=false;

not

disco(5)=false;

answered Apr 13 '18 at 19:31

bhspencer

13,086
5
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score 0 · Answer 2 · answered Apr 13 '18 at 19:31

0

You should use disco[5] not disco(5).

When you put () after disco, java is looking for a method disco that does not exist. To access an index of an array, you use [], square brackets.

answered Apr 13 '18 at 19:31

MMelvin0581

509
6
20

Method call expected when writing an array

2 Answers2