java - Can't compare sheetname with string value -

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what need compare or search string in sheet name..

i mean, excel file might have more 1 sheet, sheets specific string let said

only sheets named "formato sive 04" going processed...

i'm debugging crazy , i'm getting confused... code it's this

            workbook eworkbook = workbookfactory.create(archivo);              int totalsheet = eworkbook.getnumberofsheets();              system.out.println("fuerawhile"+totalsheet);             sheetname=new string[totalsheet];              //string nombrehoja = eworkbook.getsheetname(0).tostring();                              //system.out.println(nombrehoja);              sheet sheet = null;              while(i<totalsheet){                 sheetname[i] = eworkbook.getsheetname(i);                 system.out.println("antes if :" + sheetname[i]);                 formato = sheetname[i];                 if(formato == "formato sive 04"){                     flag = true;                 }                  if(flag){                     system.out.println("dentroif : " + sheetname[i]);                     sheet = eworkbook.getsheet(sheetname[i].tostring());                     system.out.println("exito");                 }                 else if (!flag){                     system.out.println("error");                 }                 system.out.println("dentrowhile : " + sheetname[i]);                 i++;             }

but doesnt give me true :( enter image description here

does has idea?

i think easy i'm having lot of time in , think i'm right :(

thanks in advance

in java, strings should never compared using == (unless want test intern logic, maybe). prefer:

if( "formato sive 04".equals(formato) ) { ....

if sure formato never null, can use more legible form:

if( formato.equals("formato sive 04") ) {

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