- Add - my own solution
- Edit - improve solution with book and add various solution
| input | output |
|---|---|
| da;dflkajd;slf | initial counter is : {;=2, a=2, d=3, f=2, j=1, k=1, l=2, s=1} |
| improved counter is : {;=2, a=2, d=3, f=2, j=1, k=1, l=2, s=1} |
P02 - First Nonrepeated Character
Let's find a First Nonrepeated Character.
Please write input text :
| input | output |
|---|---|
| Let's find a First Nonrepeated Character. | ArrayList soultion: |
| Execution time : 13447800 ns ( 13 ms ) | |
| Found Character : L | |
| LinkedHashMap soultion: | |
| Execution time : 2525900 ns ( 2 ms ) | |
| Found Character : L | |
| function style soultion: | |
| Execution time : 26071000 ns ( 26 ms ) | |
| Found Character : L |
P03 - Reverse Words :
| input | output |
|---|---|
| Reverse this words | Array Solution : |
| Execution time : 4003400 ns ( 4 ms ) | |
| Reversed : sdrow siht esreveR | |
| StringBuilder Solution : | |
| Execution time : 2004100 ns ( 2 ms ) | |
| Reversed : sdrow siht esreveR |
input text : 45566336754493420932877387482372374982374823749823283974232237238472392309230923849023848234580383485342234287943943094234745374657346578465783467843653748654376837463847654382382938793287492326 P04 - Contains Only Digits :
| input | output |
|---|---|
| Exception Solution : | |
| Execution time : 6578000 ns ( 6 ms ) | |
| Digits :true | |
| Java 8 Solution : | |
| Execution time : 6028700 ns ( 6 ms ) | |
| Digits :true | |
| Regular Expression Solution : | |
| Execution time : 1022600 ns ( 1 ms ) | |
| Digits :true |
text is " ... Illinois Mathematics & Science Academy ..." P05 - Count Vowels And Consonants
| input | output |
|---|---|
| HashMap And Ascii Solution | |
| Execution time : 12075000 ns ( 12 ms ) | |
| Vowels : 14 | |
| Consonants : 19 | |
| DIY Pair Solution | |
| Execution time : 3005500 ns ( 3 ms ) | |
| Vowels : 14 | |
| Consonants : 19 |
Input text is : My high school, the Illinois Mathematics and Science Academy, showed me that anything is possible and that you're never too young to think big. At 15, I worked as a computer programmer at the Fermi National Accelerator Laboratory, or Fermilab. After graduating, I attended Stanford for a degree in economics and computer science.
| input | output |
|---|---|
| P06 - Count Occurrences Of Character | |
| Map based soultion: | |
| Execution time : 3128100 ns ( 2 ms ) | |
| Character 'w' occured 2 time(s) | |
| String based soultion: | |
| Execution time : 1000700 ns ( 1 ms ) | |
| Character 'w' occured 2 time(s) |
P07 - Convert String to Int, Long, Float, Double
String is 1233
| input | output |
|---|---|
| Parse Solution | |
| Execution time : 1066000 ns ( 1 ms ) | |
| Integer is 1233 | |
| Long is 1233 | |
| Float is 1233.000000 | |
| Double is 1233.000000 | |
| Valueof Solution | |
| Execution time : 35480900 ns ( 35 ms ) | |
| Integer is 1233 | |
| Long is 1233 | |
| Float is 1233.000000 | |
| Double is 1233.000000 |
P08 - Remove Whitespaces From String
input text is...
My high
school, the Illinois Mathematics and Science Academy, showed me that anything is possible and that you're never too young to think big. At 15, I worked as a computer programmer at the Fermi National Accelerator Laboratory, or Fermilab. After graduating, I attended Stanford for a degree in economics and computer science.
| input | output |
|---|---|
| String Method Solution | |
| String : Myhighschool,theIllinoisMathematicsandScienceAcademy,showedmethatanythingispossibleandthatyou'renevertooyoungtothinkbig.At15,IworkedasacomputerprogrammerattheFermiNationalAcceleratorLaboratory,orFermilab.Aftergraduating,IattendedStanfordforadegreeineconomicsandcomputerscience. | |
| Execution time : 2995600 ns ( 2 ms ) |
P09 - Join Multiple Strings
| input | output |
|---|---|
| StringBuilder Method | |
| Execution time : 3996800 ns ( 3 ms ) | |
| String : Dream like a whale | |
| Updated StringBuilder Method | |
| Execution time : 1003300 ns ( 1 ms ) | |
| String : Dream like a whale | |
| StringJoiner Method | |
| Execution time : 999600 ns ( 0 ms ) | |
| String : Dream like a whale | |
| String Join Method | |
| Execution time : 697700 ns ( 0 ms ) | |
| String : Dream like a whale | |
| String Join Method | |
| Execution time : 1002200 ns ( 1 ms ) | |
| String : Dream like a whale | |
| java 8 Method | |
| Execution time : 4057500 ns ( 4 ms ) | |
| String : Dream like a whale |