Using Android Studio String Comparative Syntax

Source in use

                String[] array_word;
                array_word = readMessage.split("");

                for(int i=1;i<65;i++){
                    if(array_word[i] == '0'){
                        array_word[i] = null;
                    }
                }

I'm putting what I received as a readMessage into an array called array_word using the split function.

Note that readMessage only receives signals consisting of 0 or 1. 10101010 to 1111000 and so on... There are 64 coming in.

There is an error in writing the code because I want to change the value of 0 to NULL.

android java compare string

2022-09-22 17:54

1 Answers

Change it to if(array_word[i] == '0') instead of if(array_word[i].equals("0")

Below is the code tested with jshell.

jshell> String b = "11110000"
b ==> "11110000"

jshell> String[] array_word = b.split("")
array_word ==> String[8] { "1", "1", "1", "1", "0", "0", "0", "0" }

jshell> array_word[0] = null
$3 ==> null

jshell> array_word
array_word ==> String[8] { null, "1", "1", "1", "0", "0", "0", "0" }

2022-09-22 17:54

If you have any answers or tips

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