Java Utililty Methods String Extract

List of utility methods to do String Extract

  1. HOME
  2. Java
  3. S
  4. String Extract

Description

The list of methods to do String Extract are organized into topic(s).

Method

ListextractGenericTypeNames(String sig)
extract Generic Type Names 
List<String> types = new ArrayList<String>();
boolean nameDetected = false;
int currentStart = -1;
for (int i = 0; i < sig.length(); i++) {
    char c = sig.charAt(i);
    switch (c) {
    case '<':
    case ';':
...
StringextractHorizontalTabs(String line, int tabSize)
extract Horizontal Tabs 
assert line != null;
StringBuilder buf = new StringBuilder();
int column = 0;
for (int i = 0, n = line.length(); i < n; i++) {
    char c = line.charAt(i);
    if (c == '\t') {
        int count = tabSize - column % tabSize;
        for (int j = 0; j < count; j++) {
...
ListextractItems(String items)
splits a string of type {("A","B","C")} into ["A", "B", "C"] 
List<String> itemList = new ArrayList<String>();
if (items == null)
    return itemList;
items = items.replace(" ", ""); 
if (items.split("\"(.)*\"").length == 1)
    return itemList;
String[] arrayItems = items.split("\",");
for (int i = 0; i < arrayItems.length; i++) {
...
StringextractJobId(String line)
extract Job Id 
if (line.contains("job_201")) {
    int start = line.indexOf("job_201");
    int end = start;
    for (int i = start + 7; i < line.length(); i++) {
        if (jobIdChars.contains(line.charAt(i))) {
            end = i;
        } else {
            break;
...
ListextractKeyCodes(String codes)
Converts a String representation of a list of codes into a list of integers 
if (codes == null)
    throw new RuntimeException("The codes cannot be null");
int index;
int last = 0;
List<Integer> result = new ArrayList<Integer>();
while ((index = codes.indexOf(',', last)) != -1) {
    String code = codes.substring(last, index).trim();
    result.add(Integer.parseInt(code));
...
ArrayListextractLines(String data, int tabWidth)
Extracts lines of text from the specified data. 
int length = data.length();
StringBuilder buffer = new StringBuilder(length);
char ignoreCh = 0;
ArrayList<String> lines = new ArrayList<>();
int column = 0;
for (int i = 0; i < length; i++) {
    char ch = data.charAt(i);
    if (ch == ignoreCh) {
...
intextractNoPublicDomains(String domains)
extract No Public Domains 
if (domains == null)
    return 0;
return extractNoItems(domains) - extractNoPrivateDomains(domains);
ArrayListextractNumberFromInput(String command)
Returns ArrayList which contains not repeated input numbers 
String[] splittedStringIndexes = command.trim().replace(" ", "").split(",");
ArrayList<Integer> intIndexList = new ArrayList<Integer>();
for (String index : splittedStringIndexes) {
    if (index.contains("to")) {
        String[] range = index.split("to");
        int start = Integer.parseInt(range[0]);
        int end = Integer.parseInt(range[1]);
        for (int i = start; i <= end; i++) {
...
String[]extractNumbers(String text)
extract Numbers 
if (isEmpty(text))
    return new String[] {};
String[] tmp = text.split("\\D");
List<String> list = new ArrayList<String>();
for (String s : tmp) {
    if (s.length() > 0) {
        list.add(s);
return list.toArray(new String[0]);
ArrayListextractPacket(String serverPacket)
Extracts the valuable information from a packet and cuts out the initial hashtag identifier 
ArrayList<String> extractedPacket = new ArrayList<String>();
String[] tmp = serverPacket.split("#");
for (int i = 2; i < tmp.length; i++) {
    extractedPacket.add(tmp[i]);
return extractedPacket;