BUILDING JAVA PROGRAMS-TEXT
BUILDING JAVA PROGRAMS-TEXT
5th Edition
ISBN: 2810023481209
Author: REGES
Publisher: PEARSON
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Concept explainers

User Defined DataType
The data type is a format to store data that contains a particular range or type of value. It specifies which type of value a variable should have. In other words, a data type describes the type of data that variables can store. When a program stores dat…
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Chapter 3.3, Problem 20SCP

a.

Explanation of Solution

Result of “str1.length()”:

  • The function “length()”is used to return the number of characters in the given string.
  • The variable “str1” is assigned the string value “Q.E...

b.

Explanation of Solution

Result of “str2.length()”:

  • The function “length()”is used to return the number of characters in the given string.
  • The variable “str2” is assigned the string value “Arcturan Megadonkey”...

c.

Explanation of Solution

Result of “str1.toUpperCase()”:

  • The function “toUpperCase()”is used to return the string with all uppercase letters...

d.

Explanation of Solution

Result of “str2.toUpperCase()”:

  • The function “toUpperCase()”is used to return the string with all uppercase letters...

e.

Explanation of Solution

Result of “str1.substring(2,4)”:

  • The function “substring()”is used to return the substring for the specified index range.
  • The variable “str1” is assigned the string value “Q.E.D.”.
  • The starting index of the string is “0”...

f.

Explanation of Solution

Result of “str2.substring(10,14)”:

  • The function “substring()”is used to return the substring for the specified index range.
  • The variable “str2” is assigned the string value “Arcturan Megadonkey”.
  • The starting index of the string is “0”...

g.

Explanation of Solution

Result of “str1.indexOf(“D”)”:

  • The function “indexOf()”is used to return the index of the first occurrences of the given character “D”.
  • The variable “str1” is assigned the string value “Q.E.D.”.
  • The starting index of the string is “0”...

h.

Explanation of Solution

Result of “str1.indexOf(“.”)”:

  • The function “indexOf()”is used to return the index of the first occurrences of the given character “.”.
  • The variable “str1” is assigned the string value “Q.E.D.”.
  • The starting index of the string is “0”...

i.

Explanation of Solution

Result of “str2.indexOf(“donkey”)”:

  • The function “indexOf()”is used to return the index of the first occurrences of the given strinf “donkey”.
  • The variable “str2” is assigned the string value “Arcturan Megadonkey”.
  • The starting index of the string is “0”...

j.

Explanation of Solution

Result of “str3.indexOf(“X”)”:

  • The function “indexOf()”is used to return the index of the first occurrences of the given character “X”.
  • The variable “str3” is assigned the string value “Sirius Cybernetics Corporation”.
  • The starting index of the string is “0”...

k.

Explanation of Solution

Result of “str2 + str3 . charAt(17)”:

  • The function “charAt()”is used to return the character at the given index.
  • The variable “str2” is assigned the string value “Arcturan Megadonkey”.
  • The variable “str3” is assigned the string value “Sirius Cybernetics Corporation”...

l.

Explanation of Solution

Result of “str3.substring(9,str3.index0f("e"))”:

  • The function “indexOf()” is used to return the index of the first occurrences of the given character.
  • The variable “str3” is assigned the string value “Sirius Cybernetics Corporation”.
  • The function “indexOf(“e”)” returns the index of first occurrence of the character “e”. Hence the index is “10”...

m.

Explanation of Solution

Result of “str3.substring(7,12)”:

  • The function “substring()” is used to return the substring for the specified index range.
  • The variable “str3” is assigned the string value “Sirius Cybernetics Corporation”.
  • The starting index of the string is “0”...

n.

Explanation of Solution

Result of “str2.toLowerCase().substring(9,13) + str3. substring(18,str3.length() - 7)”:

  • The function “substring()” is used to return the substring for the specified index range.
  • The function “toLowerCase()” is used to return the string with all lowercase letters.
  • The function “length()”is used to return the number of characters in the given string.
  • The variable “str3” is assigned the string value “Sirius Cybernetics Corporation”.
  • The variable “str2” is assigned the string value “Arcturan Megadonkey”.
  • The starting index of the string is “0”.
  • The expression “str2.toLowerCase()” returns the string “arcturan megadonkey”.
  • The given expression “str2...

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Chapter 3 Solutions

BUILDING JAVA PROGRAMS-TEXT

Ch. 3.1 - Which of the following is the correct syntax for a...Ch. 3.1 - Prob. 2SCPCh. 3.1 - Prob. 3SCPCh. 3.1 - Prob. 4SCPCh. 3.1 - Prob. 5SCPCh. 3.1 - What is the output of the following...Ch. 3.1 - Prob. 7SCPCh. 3.1 - Prob. 8SCPCh. 3.1 - Prob. 9SCPCh. 3.1 - Write a method called printStrings that accepts a...
Ch. 3.1 - Prob. 11SCPCh. 3.2 - What is wrong with the following program? public...Ch. 3.2 - Evaluate the following expressions: a Math.abs...Ch. 3.2 - What output is produced by the following...Ch. 3.2 - Prob. 15SCPCh. 3.2 - Prob. 16SCPCh. 3.2 - Write a method called countQuarters that takes an...Ch. 3.3 - Prob. 18SCPCh. 3.3 - Prob. 19SCPCh. 3.3 - Prob. 20SCPCh. 3.3 - Prob. 21SCPCh. 3.3 - Consider the following code fragment: Scanner...Ch. 3.3 - Prob. 23SCPCh. 3.3 - Prob. 24SCPCh. 3.3 - Prob. 25SCPCh. 3 - Prob. 1ECh. 3 - Write a method called printPowersOf2 that accepts...Ch. 3 - Write a method called printPowersOfN that accepts...Ch. 3 - Prob. 4ECh. 3 - Prob. 5ECh. 3 - Prob. 6ECh. 3 - Write a variation of the largestAbsVal method...Ch. 3 - Write a method called quadratic that solves...Ch. 3 - Write a method called lastDigit that returns the...Ch. 3 - Prob. 10ECh. 3 - Prob. 11ECh. 3 - Prob. 12ECh. 3 - Prob. 13ECh. 3 - Prob. 14ECh. 3 - Prob. 15ECh. 3 - Prob. 16ECh. 3 - Prob. 17ECh. 3 - Write a method called vertical that accepts a...Ch. 3 - Prob. 19ECh. 3 - Prob. 20ECh. 3 - Prob. 21ECh. 3 - Prob. 22ECh. 3 - Write a method called printIndexed that accepts a...Ch. 3 - Write a program that produces images of Christmas...Ch. 3 - Prob. 2PPCh. 3 - Prob. 3PPCh. 3 - Prob. 4PPCh. 3 - Prob. 5PPCh. 3 - Write a program that produces calendars as output....
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