gistfile1.java

public static void main(String[] arg){
    ExpressionsEvaluator evalExpr = new ExpressionsBuilder("IF(TL_HS_NGUNG_LUONGKY1 == 1, 0, TL_HS_K_DC_KY1 * NS_HSL * TL_HS_TL_TTDV)").build();
    Map<String, Object> variables = new HashMap<String, Object>();
    variables.put("TL_HS_NGUNG_LUONGKY1", 10);
    variables.put("TL_HS_K_DC_KY1", 10);
    variables.put("NS_HSL", 1);
    variables.put("TL_HS_TL_TTDV", 12);
    System.out.println(evalExpr.eval(variables));

}