Boolean default is : 0
Boolean default as a string is false
Byte default is : 0
Byte default as a string is 0
Character default is : 0
Character default as a string is 0
Short default is : 0
Int default is : 0
Int many default is : 0
Long default is : 0
Float default is : 0.000
Double default is : 0.000
Date default is : 0
String default is zero length
Bytes default is zero length