crehwinkel@frhsd.com > numSpaces
prev  |  next  |  chance

Given an input String, find the number of spaces. HINT: use a loop that examines each character and either str.substring(i, i+1).equals(" ") or str.charAt(i) == ' ' to find the spaces. numSpaces("Hello world") → 1 numSpaces("Hello to the world") → 3 numSpaces("one fish two fish red fish blue fish") → 7 Go...Save, Compile, Run (ctrl-enter)Show Hint public int numSpaces(String str){ } Go Editor font size %:75100125150 Shorter output

Forget It! -- delete my code for this problem

Progress graphs:
 Your progress graph for this problem
 Random user progress graph for this problem
 Random Epic Progress Graph

Java Help

• Java Example Solution Code
• Java String Introduction (video)
• Java Substring v2 (video)
• Java String Equals and Loops
• Java String indexOf and Parsing
• Java If and Boolean Logic
•   If Boolean Logic Example Solution Code 1 (video)
•   If Boolean Logic Example Solution Code 2 (video)
• Java For and While Loops
• Java Arrays and Loops
• Java Map Introduction
• Java Map WordCount
• Java Functional Mapping
• Java Functional Filtering

Misc Code Practice

• Code Badges
• Introduction to Mod (video)
• MakeBricks problem and solution (video x 2)
• FizzBuzz the famous code interview question (video)

Post-solution available

Copyright Nick Parlante 2017 - privacy