How to search lines contain string in file.txt

i have problem when i want to search string line in file this is my code

public static void main( String[] args ) throws SQLException
    {
    	try{
        //System.out.println( "Hello World!" );
    		 RepositoryFactory.emf=Persistence.createEntityManagerFactory("onezero");
    	String Symbol = "EURUSD";
    	TradingHistory tradingHistorys = RepositoryFactory.getTradingHistoryRepo().findPriceEmpty(Symbol);
    	String symbols = tradingHistorys.getSymbol();
    	String created = tradingHistorys.getCreated_at();
    	String[] createds = created.split(" ");
    	String tanggal = createds[0];
    	String times = createds[1];
    	String timeSearch = tanggal.concat("T").concat(times);
    	String pathfile = "/home/ec2-user/saveFile/";
    	String filesearch = pathfile.concat(tanggal).concat("-").concat(symbols).concat(".txt");
    	SearchFile(timeSearch,filesearch);
    	
    	System.out.print(symbols+"|"+created+"|"+filesearch+timeSearch);
    }catch (Exception e){
    	System.out.print(e);
    }
    }

and here my method for search String in file

private static void SearchFile(String timeSearch, String filesearch) {
		String line = null;
		ArrayList<String> fileContents = new ArrayList<String>();
		 try {
	            FileReader fReader = new FileReader(filesearch);
	            BufferedReader fileBuff = new BufferedReader(fReader);
	            while ((line = fileBuff.readLine()) != null) {
	                fileContents.add(line);
	            }
	            fileBuff.close();
	        } catch (Exception e) {
	            System.out.println(e.getMessage());
	        }
		 System.out.println(fileContents.contains(timeSearch));
	}

and when i use

Scanner fileScanner = new Scanner(new File(filesearch));
		  int lineID = 0;
		  java.util.List lineNumbers = new ArrayList();
		  Pattern pattern =  Pattern.compile(timeSearch);
		  Matcher matcher = null;
		  while(fileScanner.hasNextLine()){
				String line = fileScanner.nextLine();
				lineID++;
				matcher = pattern.matcher(line);
				if(matcher.find()){
					lineNumbers.add(lineID);
				  
				}
				

			}
			System.out.println(lineNumbers);
		}

i got [183394, 183395, 183396, 183397, 183398, 183399, 183400, 183401, 183402, 183403, 183404, 183405, 183406]

when i run my code i got error there is false.
but when i search manual there the value is

name of file is 2020-05-05-EURUSD.txt
EUR/USD|1.09031|2020-05-05T04:30:17.008
EUR/USD|1.0903|2020-05-05T04:30:17.046
EUR/USD|1.09029|2020-05-05T04:30:17.211
EUR/USD|1.0903|2020-05-05T04:30:17.340
EUR/USD|1.09027|2020-05-05T04:30:17.348
EUR/USD|1.0903|2020-05-05T04:30:17.509
EUR/USD|1.09027|2020-05-05T04:30:17.518
EUR/USD|1.0903|2020-05-05T04:30:17.547
EUR/USD|1.09027|2020-05-05T04:30:17.558
EUR/USD|1.0903|2020-05-05T04:30:17.712
EUR/USD|1.09027|2020-05-05T04:30:17.718
EUR/USD|1.0903|2020-05-05T04:30:17.841
EUR/USD|1.09027|2020-05-05T04:30:17.848

how to fix search string in the file.txt ?

and this is the log what i got

false
EURUSD|2020-05-05 04:30:17|2020-05-05 04:30:17/home/ec2-user/saveFile/2020-05-05-EURUSD.txt2020-05-05T04:30:17

fileContents.contains(timeSearch)
checks if any element of fileContents (each line of your file) are equal to timeSearch

you should use String contains() method for each element of fileContents (each line of your file)

public static void main(String[] args) {
	String filePath2 = Paths.get("").toAbsolutePath().toString();
	String path = filePath2.concat("\\files\\2020-05-05-EURUSD.txt");
	searchFile("2020-05-05T04:30:17", path);
}

private static void searchFile(String timeSearch, String filesearch) {
    String line = null;
    ArrayList<String> fileContents = new ArrayList<String>();
     try {
            FileReader fReader = new FileReader(filesearch);
            BufferedReader fileBuff = new BufferedReader(fReader);
            while ((line = fileBuff.readLine()) != null) {
                fileContents.add(line);
            }
            fileBuff.close();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
     System.out.println(fileContents.contains(timeSearch));
     
     boolean result =false;
     for (String elementOfArrayList : fileContents) {
		if(elementOfArrayList.contains(timeSearch)) {
			result=true;
			break;
		}
	}
     System.out.println(result);
}

private static  void SearchFile(String timeSearch, String filesearch) throws IOException {
		Scanner fileScanner = new Scanner(new File(filesearch));
		  int lineID = 0;
		  java.util.List lineNumbers = new ArrayList();
		  ArrayList<Double> list = new ArrayList<Double>(); 
		  Pattern pattern =  Pattern.compile(timeSearch);
		  Matcher matcher = null;
		  while(fileScanner.hasNextLine()){
				String line = fileScanner.nextLine();
				lineID++;
				matcher = pattern.matcher(line);
				if(matcher.find()){
					lineNumbers.add(lineID);
					String lines = Files.readAllLines(Paths.get(filesearch)).get(lineID);
					String[] LineGetPrice = lines.split("\\|", 2);
					String price = LineGetPrice[1];
					String[] pricestringArray = price.split("\\|", 2);
					String prices=pricestringArray[0];
					Double priced = Double.parseDouble(prices);
					list.add(priced);
					//Double MinPrice = getMinValue(list);
					System.out.println(lines+prices);
					//System.out.println(list);
				}
				

			}
			System.out.println(lineNumbers);
			System.out.println(list);
			Double MinPrice = getMinValue(list);
			System.out.println(list+"|"+MinPrice);
			
		}

i have update and use this code i can get price and all line for match the data

thanks for all who help me here