This week's book giveaway is in the OCAJP forum.
We're giving away four copies of Programmer's Guide to Java SE 8 Oracle Certified Associate (OCA) and have Khalid A Mughal & Rolf W Rasmussen on-line!
See this thread for details.
Win a copy of Programmer's Guide to Java SE 8 Oracle Certified Associate (OCA) this week in the OCAJP forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

quiz on Float.parseFloat(String)

 
Marlene Miller
Ranch Hand
Posts: 1392
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
A quiz on valid values for Float.parseFloat(String)(String)
 
Marlene Miller
Ranch Hand
Posts: 1392
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Answers:
// f = Float.parseFloat(s); //java.lang.NullPointerException
// f = Float.parseFloat(s); //java.lang.NumberFormatException: empty String
2.0
s= 4.9E-324
0.0
s= -4.9E-324
-0.0
s= 1.7976931348623157E308
Infinity
s= -1.7976931348623157E308
-Infinity
2.0
0.0020
2.0
// f = Float.parseFloat(s); //java.lang.NumberFormatException: For input string: "NAN"
// f = Float.parseFloat(s); //java.lang.NumberFormatException: For input string: "infinity"
NaN
-Infinity
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic