bufferedreader

How can I modify a text file inside a Jar file while runtime? [duplicate]

感情迁移 提交于 2019-12-08 07:37:06
问题 This question already has answers here : Modifying a file inside a jar (12 answers) Closed 3 years ago . Well as the question says, How is that possible? This file is my proyect structure (I'm using eclipse). When exported as Jar, I can access and print the "root.ini" content through console with the code below but, How can I write to that file while runtime? This method is called from 'Main.java' private void readRoot(){ InputStream is = getClass().getResourceAsStream("/img/root.ini");

Handle response properly when used HttpClient

孤街醉人 提交于 2019-12-08 07:33:23
问题 I am developing a android app where I am using Zend framework to build APIs. I am calling API using this code. This is code in IntentService class. HttpClient client = new DefaultHttpClient(); // Set timeout values client.getParams().setIntParameter( CoreConnectionPNames.CONNECTION_TIMEOUT, CONNECTION_TIMEOUT * 1000); client.getParams().setIntParameter(CoreConnectionPNames.SO_TIMEOUT, SOCKET_TIMEOUT * 1000);try { HttpUriRequest httpRequest = null; HttpResponse response = null; // Set

How to convert buffered-reader string to JSON in android?

两盒软妹~` 提交于 2019-12-08 03:34:54
问题 I get json response in Buffered Reader. Now How to convert buffered-reader string to JSON? I get the String like [ { "email": "test@gmail.com", "password": "test@123!", "role": "monitor", "code": "0" } ] 回答1: JSONArray aardata = new JSONArray(your buffered reader String): And For Parse JSONObject obj = arrdata.getJsonObject(0); String email = obj.getString('email'); 回答2: You can create JSONArray with the response string by using: JSONArray arrayJSON = new JSONArray(responseString); And use

Should BufferedReader and InputStreamReader be closed explicitly?

ε祈祈猫儿з 提交于 2019-12-08 02:09:31
问题 I want to read the content of a InputStream into a String : private String readToString(InputStream stream) { return new BufferedReader(new InputStreamReader(stream)) .lines().collect(Collectors.joining("\n")); } The stream comes from java.lang.Process . Question: Do I have to explicitly close any of the InputStream , InputStreamReader or BufferedReader in this case? Sidenote: the linked question is NOT a duplicate, as my question is about HOW to properly close the streams, not how to read

Why is Java HashMap slowing down?

纵然是瞬间 提交于 2019-12-08 02:03:44
问题 I try to build a map with the content of a file and my code is as below: System.out.println("begin to build the sns map...."); String basePath = PropertyReader.getProp("oldbasepath"); String pathname = basePath + "\\user_sns.txt"; FileReader fr; Map<Integer, List<Integer>> snsMap = new HashMap<Integer, List<Integer>>(2000000); try { fr = new FileReader(pathname); BufferedReader br = new BufferedReader(fr); String line; int i = 1; while ((line = br.readLine()) != null) { System.out.println(

BufferedReader blocking at read()

↘锁芯ラ 提交于 2019-12-08 01:48:45
问题 Im trying to create a simple chat program, with a "server" and a client, now my problem is that the program blocks while reading messages from the server to the client and vice-versa. This example features the problem with messages from Client to Server. Example of what I have on the server side: private Reader input; private Writer output; try { server = new ServerSocket(this.port); while (true) { Socket connection = server.accept(); serverDisplay("We have a connection"); input = new

Getting byte offset of line in a text file?

谁说我不能喝 提交于 2019-12-07 18:33:59
问题 I have a text file like one two three four five I need to get the offset of each line in the file. How do I do this in Java? I have searched through some of the I/O libraries(like BufferedReader and RandomAccessFile) but I'm unable to find a satisfactory answer to this. Can anyone suggest how to deal with this? 回答1: Another approach would be to count the bytes of each line line this BufferedReader br = null; try { String line; // in my test each character was one byte ArrayList<Integer>

Comma-separated records into String Array?

谁都会走 提交于 2019-12-07 17:14:17
问题 I am trying to read a BufferedReader that reads in a file containing records separated by commas. I would like to split each string (or record) in between two commas, strip the double quotes, and put each of those into an index of a String array. For example: say I have this line in the file: ("0001", "00203", "82409" (newline) "0002", "00204", "82500" (newline) etc.) I want to put 0001 into a String array[1], I want 00203 into String array[2], and so on.... The following code traverses the

java telnet socket : BufferedReader / BufferedWriter

萝らか妹 提交于 2019-12-07 04:44:04
问题 My server opens a telnet port on 23999 and when I give telnet localhost 23999 , it shows below : < BP-SAS ==> bplin19 !>telnet 0 23999 Trying 0.0.0.0... Connected to 0. Escape character is '^]'. Please enter password to authenticate: (here i give password for example abc123) Enter 'help' at any point to get a listing of all registered commands... BAS> log set-info 1 ( commad i have entered and it does somthing ) Now Instead of open like this, I have to write java code which does this thing.

When should we use console class?

三世轮回 提交于 2019-12-06 21:38:17
问题 I was reading about Console class, and in the very first line, it was written New to Java 6 and when we are running Java SE 6 from command line, then we are typically using console class object So, which means we are implicitly using console class through the command line ?? Then, I started looking for more detail about Console class and I found Input from console class in java and Console link. So, concluded some points Console class are only usable outside the IDE using System.console()