15. A string is a sequence characters.

True or False

7. Which two are the features of the Math dass? (Choose al correct answers) LJ Math methods can be invoked with Strings as arguments. Common math functions ike square root are taken care of in the language. Math methods can be invoked without creating an instance of a Math object You don't have to worry about the data type returned from a Math method. 8. Which is NOT true? Static methods can be invoked through the cdass name. OStatic methods must be of return void. O Static methods can be invoked through an instance of a dass OA dass can have multiple static methods 9. The replaceFirst0 method replaces only the first occurrence of matching character pattern in a string. True O False 10. The String dlass must be imported using java. lang.String True OFalse