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lblMin.setText(String.valueOf(jour.getmTempMin()));
lblMax.setText(String.valueOf(jour.getmTempMax()));
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(Just assumption, less info of Exception stacktrace)
I think, this line, incercari.setText(valIncercari); throws Exception because valIncercari is int
So it should be,
incercari.setText(valIncercari+"");
Or
incercari.setText(Integer.toString(valIncercari));