CodCodrin

  public static int SumaNumar(String textDate){
     	String pattern = "sysdate";
        int daysCalc = 0;
        String operations = "";
        int numarFormat = 0;
        int semn=1;
        int indexSysdate = textDate.indexOf(pattern);
        int start = indexSysdate + pattern.length();
        System.out.println("start: " + start);

        if(indexSysdate != -1){
        operations = textDate.substring(start);
	    operations.trim();
	    System.out.println("Numarul: " + operations);
    	for(int i = 0;i<=operations.length()-1;i++) {

    		char iterate = operations.charAt(i);
    		int gasit = 0;
    		int gasitnr = 0;

    			if(Character.isDigit(iterate)){
    			 gasit = Character.getNumericValue(iterate);
    		     numarFormat = numarFormat * 10 + gasit;
    			 System.out.println("Numarul: " + numarFormat);
    			}

    			//+234-32-42+4242
    			if(Character.toString(iterate).equals("+")) {
    		    gasitnr = numarFormat;
    			daysCalc += gasitnr*semn;
    			numarFormat = 0;
    			System.out.println("Adunarea: " + daysCalc);

    		}

    		//+234-32-42+4242
    	    	if(Character.toString(iterate).equals("-")) {
    	    	semn = -1;
    			gasitnr = numarFormat;
    			daysCalc += gasitnr*semn;
    			numarFormat = 0;
    			System.out.println("Scaderea: " + daysCalc);
    	}


}
    	}
    	return daysCalc;
}
}