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Update code for the return firstUniqCharString

This commit is contained in:
YuCheng Hu 2021-04-29 12:04:40 -04:00
parent 5e5b69c9d2
commit 3351f789d6
1 changed files with 37 additions and 1 deletions
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38
toolkits/codebank/src/test/java/com/ossez/toolkits/codebank/tests/leetcode/LeetCode0387FirstUniqueCharacterTest.java
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@ -7,6 +7,7 @@ import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
/**
@ -35,11 +36,12 @@ public class LeetCode0387FirstUniqueCharacterTest {
String data = "lovelycomossez";
System.out.println(firstUniqChar(data));
System.out.println(firstUniqCharString(data));
}
/**
* Deserialize from array to tree
* Return the first Uniq Char String index
*
* @param data
* @return
@ -76,5 +78,39 @@ public class LeetCode0387FirstUniqueCharacterTest {
}
/**
* Return the first Uniq Char String without using Map
* @param data
* @return
*/
private String firstUniqCharString(String data) {
// NULL CHECK
if (data.equals("")) {
return "";
}
char[] strArray = data.toCharArray();
String retStr = "";
if (data.length() == 1) {
retStr = data;
}
for (int i = 0; i < strArray.length; i++) {
String valStr = Character.toString(strArray[i]);
String rData = data;
rData = data.replace(valStr, "");
rData = rData.replace(valStr.toUpperCase(Locale.ROOT), "");
rData = rData.replace(valStr.toLowerCase(Locale.ROOT), "");
if (rData.length() == 0) {
retStr = "";
} else if (rData.length() + 1 == data.length()) {
retStr = valStr;
break;
}
}
return retStr;
}
}