Apex : How do I reach my bk variable stated in a lower bound? - range

Question

I get a Variable does not exist: bk error in this code :
String MCLU1 = 'BK2200 0015 -- 41';
if (MCLU1 != null || MCLU1 != '') {
String bk = null;
String bk_full = null;
String bk_extension = '--';
String [] bkAfterSplit = null;
bk_full = MCLU1;
if (bk_full.contains(bk_extension)) {
bkAfterSplit = bk_full.split(' -- ');
bk = bkAfterSplit[0];
System.debug(LoggingLevel.DEBUG, 'bk inside my if : ' + bk);
} else {
bk = bk_full;
System.debug(LoggingLevel.DEBUG, 'bk inside my else : ' + bk);
}
} else {
System.debug(LoggingLevel.DEBUG, 'MCLU1__c is empty');
}
String external_id = 'FRA-BLIP-' + bk;
System.debug(LoggingLevel.DEBUG, 'bk outside my if/else : ' + bk);
System.debug(LoggingLevel.DEBUG, 'external_id : ' + external_id);
my bk variable on line 23 could not be found. But when I try the (almost) same code in eclipse with Java, everything works fine. Cf sample code bellow :
public class BkDoesNotExist {
public static void main(String[] args) {
String MCLU1__c = "BK2200 0015 -- 41";
// String MCLU1__c = null;
String bk = null;
String bk_full = null;
String bk_extension = "--";
String [] bkAfterSplit = null;
if (MCLU1__c != null || MCLU1__c != "") {
bk_full = MCLU1__c;
if (bk_full.contains(bk_extension)) {
bkAfterSplit = bk_full.split(" -- ");
bk = bkAfterSplit[0];
System.out.println("bk inside my if : " + bk);
} else {
bk = bk_full;
}
} else {
System.out.println("MCLU1__c is empty");
}
String external_id = "FRA-BLIP-"+bk;
System.out.println("bk outside my if : " + bk);
System.out.println("external_id : " + external_id);
}
}
Console shows :
bk inside my if : BK2200 0015
bk outside my if : BK2200 0015
external_id : FRA-BLIP-BK2200 0015
What am I missing here ?

Answer 1

OMG... I defined my variables just 1 level under the right place...
Instead of
String MCLU1 = 'BK2200 0015 -- 41';
if (MCLU1 != null || MCLU1 != '') {
String bk = null;
String bk_full = null;
String bk_extension = '--';
String [] bkAfterSplit = null;
bk_full = MCLU1;
It has to be
String MCLU1 = 'BK2200 0015 -- 41';
String bk = null;
String bk_full = null;
String bk_extension = '--';
String [] bkAfterSplit = null;
if (MCLU1 != null || MCLU1 != '') {
bk_full = MCLU1;