Midterm 5-part 2 26. All the methods in the Math dass are static methods. True F
ID: 3867587 • Letter: M
Question
Midterm 5-part 2
26. All the methods in the Math dass are static methods. True False 27. The String concat0 method concatenates only String data types. True False 28. The String class must be imported using java.lang.String C True O False 29. What is the output? public static void main(String args) String alphaNumeric = "Java World!" + 8; System.out.println(alphaNumeric) OCompilation error Java World18 OJava World! 8 Java World! 8 30. The replaceFirstO method replaces only the first occurrence of matching character pattern in a string. True O FalseExplanation / Answer
26) True
The methods in the math class are static because, these methods do not rely on instance variables of the math class.
27) True
The String concat() method concatenates the string to the end of the first string.
28) True
The java.lang.String class provides many methods to work on string.
Like toUpperCase(), toLowerCase()
29) D
The output will be “Java World! 8”
alphaNumeric is a string, so it can concatenate 8 with the java world!
30) True
The method replaceFirst() will replace the first pattern that matches with the given pattern with given replacement.
[Note: Post remaining Questions separately]