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SubsequenceOfAString.java
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SubsequenceOfAString.java
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package main;
import java.util.ArrayList;
import java.util.List;
public class SubsequenceOfAString {
List findLongestString(List<String> dict, String input) {
String finalString = null;
List<String> multipleLongestString = new ArrayList<String>();
int index = 0;
boolean isLongStringFound = false;
for (String tempDict : dict) {
finalString = compareString(tempDict, input);
if (tempDict.equals(finalString)) {
finalString = tempDict;
if (multipleLongestString.size() == 0) {
multipleLongestString.add(index, finalString);
} else if (finalString.length() > multipleLongestString.get(0)
.length()) {
isLongStringFound = true;
}
}
if (finalString.length() >= multipleLongestString.get(0).length()
&& !finalString.equals(multipleLongestString.get(0))) {
if (isLongStringFound) {
multipleLongestString.remove(0);
isLongStringFound = false;
}
multipleLongestString.add(0, finalString);
index++;
}
}
printList(multipleLongestString);
return multipleLongestString;
}
void printList(List<String> inputList) {
for (String longestString : inputList) {
System.out.println(longestString);
}
}
String compareString(String tempDict, String input) {
StringBuffer sb = new StringBuffer();
int tempCount = 0;
int inputStringLength = input.length();
int dictLength = 0;
while (inputStringLength != 0) {
if (dictLength < tempDict.length()) {
if (input.toLowerCase().contains(
Character.toString(tempDict.toLowerCase().charAt(
tempCount)))) {
sb.append(tempDict.charAt(tempCount));
tempCount++;
dictLength++;
}
}
inputStringLength--;
}
return sb.toString();
}
public static void main(String[] args) {
List<String> dict = new ArrayList<String>();
dict.add("ale");
dict.add("applee");
dict.add("monkey");
dict.add("plea");
String input = "abpcpleeaDChsssgtrsssmonkey";
SubsequenceOfAString ls = new SubsequenceOfAString();
ls.findLongestString(dict, input);
}
}