import java.util.List;
import java.util.ArrayList;
import java.util.Date;

/**
* To compiple: javac -d . ListPerformanceTest.java
* To run: java com.salesforce.test.ListPerformanceTest
*
* @author ashik
*/
public class ListPerformanceTest {

private int LOOP_COUNT = 50000;
private List firstList;
private List secondList;

public ListPerformanceTest() {
firstList = new ArrayList();
secondList = new ArrayList();
for(int i = 0; i < LOOP_COUNT; i++) {
if(i % 3 != 0 || i % 5 != 0) {
firstList.add("ashik - " + i);
}
if(i % 9 != 0) {
secondList.add("ashik - " + i);
}
}
}

public static void main(String[] args) {
System.out.println("\nListPerformanceTest starts.....\n");
ListPerformanceTest perf = new ListPerformanceTest();
List intersection = new ArrayList();
List union = new ArrayList();

Date d1 = new Date(System.currentTimeMillis());
System.out.println("d1 = " + d1);
for(String value : perf.firstList) {
System.out.println("value for firstList = " + value);
}
Date d2 = new Date(System.currentTimeMillis());
System.out.println("d2 = " + d2);
for(String value : perf.secondList) {
System.out.println("value for secondList = " + value);
}
Date d3 = new Date(System.currentTimeMillis());
System.out.println("d3 = " + d3);

System.out.println("perf.firstList.size() = " + perf.firstList.size() + " and perf.secondList.size() = " + perf.secondList.size());

if(perf.firstList.size() >= perf.secondList.size()) {
intersection.addAll(perf.firstList);
intersection.retainAll(perf.secondList);
} else {
intersection.addAll(perf.secondList);
intersection.retainAll(perf.firstList);
}
Date d4 = new Date(System.currentTimeMillis());
System.out.println("d4 = " + d4);
System.out.println("intersection.size() = " + intersection.size());

if(perf.firstList.size() >= perf.secondList.size()) {
union.addAll(perf.firstList);
union.removeAll(perf.secondList);
union.addAll(perf.secondList);
} else {
union.addAll(perf.secondList);
union.removeAll(perf.firstList);
union.addAll(perf.firstList);
}
Date d5 = new Date(System.currentTimeMillis());
System.out.println("d5 = " + d5);
System.out.println("union.size() = " + union.size());

System.out.println("\nListPerformanceTest ends.....\n");
}

import java.util.List;
import java.util.ArrayList;

/**
* To compiple: javac -d . RemoveListTest.java
* To run: java com.salesforce.test.RemoveListTest
*
* @author ashik
*/
public class RemoveListTest {

public List counts = new ArrayList();

public RemoveListTest() {
counts.add(0);
counts.add(1);
counts.add(2);
counts.add(3);
counts.add(4);
counts.add(5);
counts.add(6);
counts.add(7);
counts.add(8);
counts.add(9);
counts.add(10);
counts.add(11);
counts.add(12);
counts.add(13);
counts.add(14);
}

public static void main(String[] args) {
System.out.println("\nRemoveListTest starts.....\n");
RemoveListTest rlt = new RemoveListTest();
List results = new ArrayList();
for(Integer count : rlt.counts) {
System.out.println("count before removing = " + count);
if(count % 3 == 1) {
results.add(count);
// rlt.counts.remove(count); // you will get runtime error if you uncomment it
}
}

for(Integer result : results) {
System.out.println("result = " + result);
rlt.counts.remove(result);
}
for(Integer count : rlt.counts) {
System.out.println("count after removing = " + count);
}

import java.io.*;

/**
* To compile: javac -d . SfdcUnicodeToNativeConverter.java
* To run: java com.salesforce.test.SfdcUnicodeToNativeConverter
*
* @author ashik
*/
public class SfdcUnicodeToNativeConverter {

private static String fileName = "output.properties";

private static String sentenceToConvert = "cmgt_configurator/Sfdc_common_summary_32=\u304a\u652f\u6255\u3044\u60c5\u5831\u306e\u5165\u529b";

/*
\u304a\u652f\u6255\u3044\u60c5\u5831\u306e\u5165\u529b
\u304a\u652f\u6255\u3044\u6761\u4ef6 & \u5951\u7d04\u671f\u9593\u306e\u7de8\u96c6
\u6b64\u8ba2\u5355\u7684\u603b\u4f63\u91d1+
\u82e5\u8981\u7e7c\u7e8c\u7d50\u5e33\uff0c\u60a8\u5fc5\u9808\u8a73\u95b1\u8b80\u4e26\u63a5\u53d7\u4ee5\u4e0b\u6240\u5217\u6bcf\u500b\u7522\u54c1\u7684\u689d\u6b3e\u3002
*/
public static void writeOutput(String str, String fileName) {
System.out.println("Unicode to Native Conversion Starts...");
try {
FileOutputStream fos = new FileOutputStream(fileName);
Writer out = new OutputStreamWriter(fos, "UTF8");
out.write(str);
out.close();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("Unicode to Native Conversion Successful!");
}

public static void main(String[] args) {
writeOutput(sentenceToConvert, fileName);
}

/**

* To compiple: javac -d . ConvertHttpToHttps.java

* To run: java com.google.test.ConvertHttpToHttps

*

* @author ashik

*/
public final class ConvertHttpToHttps {

private static String url = "http://configure.google.com:80/AppStore/en/US/enterpriseMgr/AppStore";

public static void main (String[] args) {
System.out.println("url before replacing = " + url);
System.out.println("url after replacing = " + convert(url));
}

public static String convert(String url) {
StringBuffer result = new StringBuffer();
if(url.startsWith("http://")) {
String strColon = url.substring(7);
result.append("https://");
int colonIndex = strColon.indexOf(":");
String portNumber = strColon.substring(0, colonIndex);
result.append(portNumber);
result.append(":443" + strColon.substring(colonIndex+3));
}
return result.toString();
}

/**
* To compile: javac -d . StringReplaceTest.java
* To run: java com.salesforce.test.StringReplaceTest
* or, java com.salesforce.test.StringReplaceTest start
* or, java com.salesforce.test.StringReplaceTest middle
* or, java com.salesforce.test.StringReplaceTest end
* @authot ashik
*/
public class StringReplaceTest {

public static void main(String[] args) {

System.out.println("\nStringReplaceTest starts.....\n");

String firstStr = "I am a Java programmer working in USA. Chess is my hobby and here in USA lot of people play chess.";

System.out.println("firstStr before replacing = " + firstStr);

String positionPOfDollarSign = "";
if(args.length > 0) {
positionPOfDollarSign = args[0];
}
String secondStr = "";
if("start".equalsIgnoreCase(positionPOfDollarSign)) {
secondStr = firstStr.replaceAll("USA", "$PUT_A_VALUE123"); // illegal group reference
} else if("middle".equalsIgnoreCase(positionPOfDollarSign)) {
secondStr = firstStr.replaceAll("USA", "PUT_A_VALUE$123"); // String index out of range: 15
} else if("end".equalsIgnoreCase(positionPOfDollarSign)) {
secondStr = firstStr.replaceAll("USA", "PUT_A_VALUE123$"); // java.lang.IndexOutOfBoundsException: No group 1
} else {
secondStr = firstStr.replaceAll("USA", "PUT_A_VALUE123"); // no error
}

System.out.println("\nsecondStr after replacing firstStr = " + secondStr);

System.out.println("\nStringReplaceTest ends.....\n");
}

import java.util.StringTokenizer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* To compiple: javac -d . SfdcReplaceSubstring3.java
* To run: java com.google.test.SfdcReplaceSubstring3
*
* @author ashik
*/
public final class SfdcReplaceSubstring3 {

// private static String firstStr = "I am a Java programmer and a $Chess$ player working in USA. $Chess$ is my hobby and here in USA lot of people play $Chess$. USA had a great Chess player named Bobby Fischer.";

private static String firstStr = "Java, Apex, $Chess$ and Oracle - which one do you like? I guess Chess. If not $Chess$ then what else?";

private static String patternToSearch = "$Chess$";

private static String[] replacementStrFromDB = { null, "", " ", "PUT_A_VALUE123",
"PUT#A^VALUE!123?a+b/c>d", "PUT$A$VALUE123", "$PUT_A_VALUE123",
"PUT_A_$VALUE123", "PUT_A_VALUE123$", "PUT_A_VALUE$123",
"PUT_A_VALUE123$", "\\$PUT_A_VALUE123", "\\\\$PUT_A_VALUE123",
"\\PUT_A_VALUE123", "\\\\PUT_A_VALUE123", "\\PUT_A_VALUE$123",
"\\\\PUT_A_VALUE$123", "\\PUT_A_VALUE123$", "\\\\PUT_A_VALUE123$",
"$PUT_A_VALUE$123$" };

public static void main(String[] args) {
System.out.println("\nfirstStr before replacing = " + firstStr);
System.out.println("\npatternToSearch = " + patternToSearch);
// System.out.println("Direct replacement: " +
// matcher.replaceAll("PUT\\$A\\$VALUE123"));
for (int i = 0; i < replacementStrFromDB.length; i++)
try {
System.out.println("\nExecuted test#"
+ (i + 1)
+ ": "
+ "firstStr after replacing with "
+ replacementStrFromDB[i]
+ " = "
+ replace(firstStr, patternToSearch,
replacementStrFromDB[i]));
} catch (Exception e) {
System.out.println("\nExecuted test#" + (i + 1) + ": "
+ "Exception while replacing firstStr with "
+ replacementStrFromDB[i] + " = " + e.getMessage());
}
}

public static String replace(String text, String searchString,
String replacement) {
int start = 0;
int end = text.indexOf(searchString, start);
if (end == -1) {
return text;
}
int replLength = searchString.length();
StringBuilder buf = new StringBuilder();
while (end != -1) {
buf.append(text.substring(start, end)).append(replacement);
start = end + replLength;
end = text.indexOf(searchString, start);
}
buf.append(text.substring(start));
return buf.toString();
}

import java.util.*;

/**
* To compiple: javac -d . StringUtils.java
* To run: java com.salesforce.test.StringUtils
*
* @authot ashik
*/
public class StringUtils {

private StringUtils() {}

/**
* the characters to unescape
*/
public static HashMap htmlEntities = new HashMap();
static {
htmlEntities.put("<","<"); htmlEntities.put("<",""); htmlEntities.put(">",">");
htmlEntities.put("'","\'"); htmlEntities.put("'","\'");
htmlEntities.put(""","\""); htmlEntities.put(""","\"");
htmlEntities.put("&","&"); htmlEntities.put("&","&");
htmlEntities.put(" "," "); htmlEntities.put(" "," ");
}

public static final String unescapeHTML(String source, int start){
int i,j;

i = source.indexOf("&", start);
if (i > -1) {
j = source.indexOf(";" ,i);
if (j > i) {
String entityToLookFor = source.substring(i , j + 1);
System.out.println("source = " + source + ", entityToLookFor = " + entityToLookFor + ", i = " + i + " and j = " + j);
if(entityToLookFor.lastIndexOf("&") > entityToLookFor.indexOf("&")) {
i = entityToLookFor.lastIndexOf("&") + 1;
System.out.println("Before source = " + source + ", entityToLookFor = " + entityToLookFor + ", i = " + i + " and j = " + j);
entityToLookFor = entityToLookFor.substring(entityToLookFor.lastIndexOf("&"));
System.out.println("After source = " + source + ", entityToLookFor = " + entityToLookFor + ", i = " + i + " and j = " + j);
}
String value = (String)htmlEntities.get(entityToLookFor);
if (value != null) {
source = new StringBuffer().append(source.substring(0 , i)).append(value).append(source.substring(j + 1)).toString();
return unescapeHTML(source, i + 1); // recursive call
}
}
}
return source;
}

public static void main(String args[]) throws Exception {
// to see accented character to the console
java.io.PrintStream ps = new java.io.PrintStream(System.out, true, "Cp850");

ps.println("Finally: Ashik's Quote <Test Ok = " + unescapeHTML("Ashik's Quote <Test Ok", 0));
ps.println("-----------");
ps.println("Finally: M& M > 5 = " + unescapeHTML("M& M > 5", 0));
ps.println("-----------");
ps.println("Finally: M & M > 5 = " + unescapeHTML("M & M > 5", 0));
ps.println("-----------");
ps.println("Finally: M &M > 5 = " + unescapeHTML("M &M > 5", 0));
ps.println("-----------");
ps.println("Finally: M& M> 5 = " + unescapeHTML("M& M> 5", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Apos\'trophie & "quote" is <present>", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Please check for empty space in Order Review tab.", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Also check for Billing Information & Subscription Information & Order Review tabs.", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("It's difficult to check today's capitalization strategy for all tabs.", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Remember that 12 is > 9 is > 4", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Similarly 8 is < 10 is < 15", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Shakespeare said,"To be or not to be that is the question."", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Think & think about New York's <best pizza> as the \"ultimate\" pizza!", 0));
ps.println("-----------");
ps.println("Also: \n-->" + unescapeHTML("Apos'trophie & "quote" is <present>", 0));
ps.println("-----------");
}