How To Recursively Find Given String In A File

Oct 19, 2014

I have to recursively find a given string in a file. I HAVE to use the LineNumberReader class, and the output would be like so:

Line#Found : the string of the whole line

This is the code I've written:

public String findGivenString(String givenString, int currentLineNumber) {
LineNumberReader lnr = null;
try {
lnr = new LineNumberReader(new FileReader(getFile()), 4096);
lnr.setLineNumber(currentLineNumber);
String s = lnr.readLine().toLowerCase();

[Code] ....

I messed around with a bit, and it doesn't change to the new set line. Though the line number is incrementing! So it just keeps checking the first line of the file over and over again, which is why it can't find the given string. Which also throws the StackOverFlow exception I'm getting.

Here's the output if I remove the comment from the System.out...:

String @ that Line# 1: package banking;
String @ that Line# 2: package banking;
String @ that Line# 3: package banking;
String @ that Line# 4: package banking;
....

So you see it keeps checking the same line even though the line number IS incrementing.

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Trying To Find Cheapest Path Recursively

May 25, 2015

Trying to find cheapest path recursively, given a grid a integers trying to recursively find the cheapest path from the top to the bottom. cheapest being the sum of the path. I think I've made my code over complicated. recursive things are usually much more elegant

import java.io.FileInputStream; 
import java.util.Scanner;
import java.io.FileInputStream;
import java.io.FileNotFoundException; 
public class trial {
public void readFile(String fileName)
 
[Code] ....

and here is the grid

27 19 18 85 32 11 18 24 22 98
60 83 52 61 18 64 74 33 95 42
56 27 71 56 65 70 18 78 35 74
15 89 19 92 61 76 92 42 57 26
88 28 78 45 21 98 11 72 82 97
49 54 88 79 16 43 27 78 52 71
17 18 60 40 72 39 70 52 96 11 
62 79 25 50 73 40 98 64 44 72
25 79 72 25 64 35 29 16 77 96 
12 93 49 64 61 34 83 87 34 36

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[Code].....

This is actually my question:

Java Code:

1. billing-20140527[09].txt has

a)XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)XGMS,2034-05-27 30:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

2. billing-20140527[10].txt has

a)XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)HELO

[B]I try to find the number 1 in both text files, if lets say I input the text file name is billing, I can find the number 1 in both text file and output them:[/B]

a) XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b) XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

[B]However, if I specify the text file name: billing-20140527[09].txt and find the number 1 inside the text file, it will only output:[/B]

a) XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040. mh_sh_highlight_all('java');

So far, I can't get this program to run,

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Your method should take in as a parameter the head reference to a linked list. Then, write a recursive method that returns a count of the number of elements greater than a given threshold. You may assume that the data elements in the linked lists are ints. The parameters of your method are a reference to the linked list and a int value representing the threshold.

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