Exam 9: Text Processing and More About Wrapper Classes

What will be displayed after the following code is executed? String str = "abc456"; For (int i = 0; i < str.length(); i++) { Char chr = str.CharAt(i); If (!Character.isLetter(chr)) System.out.print(Character.toUpperCase(chr)); }

Which of the following statements converts an int variable named number to a string and stores the value in the String object variable named str?

What will be displayed after the following statements are executed? StringBuilder strb = new StringBuilder("We have lived In Chicago, Trenton, and Atlanta."); Strb.replace(17, 24, "Tampa"); System.out.println(strb);

You can concatenate String objects by using the __________.

The term __________ is commonly used to refer to a string that is part of another string.

Which of the following statements converts a String object variable named str to an int and stores the value in the variable x?

You cannot assign a value to a wrapper class object.

The process of breaking a string down into tokens is known as __________.

If str is declared as: String str = "ABCDEFGHI"; What will be returned from the following statement? Character.toLowerCase(str.charAt(5))

What is the term used for a class that is "wrapped around" a primitive data type and allows you to create objects instead of variables?

The String class's regionMatches method performs a case-insensitive comparison.

A wrapper class is a class that is "wrapped around" a primitive data type and allows you to create objects instead of variables.

Which of the following statements will print the maximum value an int variable may have?

The Character wrapper class provides numerous methods for __________.

The term used for the character that separates tokens is __________.

What will be the value of position after the following code is executed? int position; String str = "The cow jumped over the moon."; Position = str.indexOf("ov");

In the following statement, what data type must recField be? str.getChars(5, 10, recField, 0);

The __________ method returns a copy of the calling String object with all leading and trailing whitespace characters deleted.

What will be displayed after the following code is executed? String str1 = "The quick brown fox jumped over the lazy dog."; String str2 = str1.substring(20, 26); System.out.println(str2);

Which of the following statements will convert the string, str = "285" to an int?