Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4.4, Problem 4.4.1CP
Suppose s1, s2, and s3 are three strings, given as follows:
String s1 = "Welcome to Java";
String s2 = "
String s3 = "Welcome to Java";
What are the results of the following expressions?
(a) s 1 == s2
(b) s2 == s3
(c) s1 .equals(s2)
(d) s2.equals(s3)
(e) s1 .compareTo(s2)
(f) s2.compareTo(s3)
(g) s2. compareTo(s2)
(h) s1. charAt (0)
(i) s1. indexOf (' j ')
(j) s1.indexOf("to")
(k) s1. last IndexOf ('a')
(1) s1 .1 astlndexOf ("o" , 15)
(m) s1.1ength()
(n) s1 .substring(5)
(o) s1 .substring(5, 11)
(p) s1.startsWith("Wel")
(q) s1.endsWith("Java")
(r) s1 .toLowerCase()
(s) s1 .toUpperCase()
(t) s1 .concat (s2)
(u) s1.contain(s2)
(v) "\t Wel \t".trim()
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
DescriptionA researcher is analyzing DNA. A DNA can be represented as a string composed of the characters A, G, C, or T.One day, researchers found a strange DNA, which is Smooth Repeated DNA. The DNA is represented by a string that has infinite length. The string has a repeating pattern, i.e. the DNA string 0 is repeated an infinite number of times. For example, if0 = "????", then = "???????????? . . . ".According to researchers, a DNA is said to be special if it contains substrings . Determine whetheris a substring of .
Squad FormatA line containing the two strings 0 and .
Output FormatA line that determines whether it is a substring of . Issue “YES” ifis a substring of . Output “NO” otherwise.
Example Input and Output
Input Example
Example Output
AGCT GC
YES
AGCT TA
YES
AGCT GT
No
AGCT TAGCTAGCT
YES
AGGACCTA CTAA
YES
Explanation ExampleIn the first to fourth test case examples, is worth "???????????? . . . ". The part in bold is one of the…
public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string.This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is,str = new StringBuilder(str).reverse().toString();
Here's the tester it must pass:
@Test public void testPancakeScramble() throws IOException {// Explicit test casesassertEquals("", P2J3.pancakeScramble(""));assertEquals("alu",…
public static String pancakeScramble(String text)
This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can
also see examples of what the result should be for various arguments. Given a text string,
construct a new string by reversing its first two characters, then reversing the first three characters
of that, and so on, until the last round where you reverse your entire current string.
This problem is an exercise in Java string manipulation. For some mysterious reason, the Java
String type does not come with a reverse method. The canonical way to reverse a Java string
str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result
back to an immutable string, that is,
str = new StringBuilder(str).reverse().tostring();
A bit convoluted, but does what is needed without fuss or muss. Maybe one day the Java strings will
come with the reverse method built in, just like the string data types of all sensible…
Chapter 4 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 4.2 - Evalute the following method calls: (a)...Ch. 4.2 - True or false? The argument for trigonometric...Ch. 4.2 - Write a statement that converts 47 degrees to...Ch. 4.2 - Write a statement that converts PI to an angle in...Ch. 4.2 - Write an expression that obtains a random integer...Ch. 4.2 - Prob. 4.2.6CPCh. 4.2 - Prob. 4.2.7CPCh. 4.3 - Use print statements to find out the ASCII code...Ch. 4.3 - Which of the following are correct literals for...Ch. 4.3 - How do you display the characters \ and "?
Ch. 4.3 - Evaluate the following: Int i = '1'; int j ='1' +...Ch. 4.3 - Can the following conversions involving casting be...Ch. 4.3 - Show the output of the following program: public...Ch. 4.3 - Write the code that generates a random lowercase...Ch. 4.3 - Show the output of the following statements:...Ch. 4.4 - Suppose s1, s2, and s3 are three strings, given as...Ch. 4.4 - Prob. 4.4.2CPCh. 4.4 - Show the output of the following statements (write...Ch. 4.4 - Prob. 4.4.4CPCh. 4.4 - Let s1 be " Welcome " and s2 be " welcome ". Write...Ch. 4.4 - Write one statement to return the number of digits...Ch. 4.4 - Write one statement to return the number of digits...Ch. 4.5 - If you run Listing 4.3 GuessBirthday.java with...Ch. 4.5 - If you enter a lowercase letter such as b, the...Ch. 4.5 - What would be wrong if lines 6 and 7 are in...Ch. 4.6 - Prob. 4.6.1CPCh. 4.6 - Prob. 4.6.2CPCh. 4.6 - Show the output of the following statements: (a)...Ch. 4 - (Geometry: area of a pentagon) Write a program...Ch. 4 - (Geometry: great circle distance) The great circle...Ch. 4 - (Geography: estimate areas) Use the GPS locations...Ch. 4 - (Geometry: area of a hexagon) The area of a...Ch. 4 - (Geometry: area of a regular polygon) A regular...Ch. 4 - (Random points on a circle) Write a program that...Ch. 4 - (Corner point coordinates) Suppose a pentagon is...Ch. 4 - (Find the character of an ASCII code) Write a...Ch. 4 - (Find the Unicode of a character) Write a program...Ch. 4 - (Guess birthday) Rewrite Listing 4.3,...Ch. 4 - (Decimal to hex) Write a program that prompts the...Ch. 4 - (Hex to binary) Write a program that prompts the...Ch. 4 - (Vowel or consonant?) Write a program that prompts...Ch. 4 - (Convert Letter grade to number) Write a program...Ch. 4 - (Phone key pads) The international standard...Ch. 4 - (Random character) Write a program that displays a...Ch. 4 - (Days of a month) Write a program that prompts the...Ch. 4 - (Student major and status) Write a program that...Ch. 4 - (Business: check ISBN-10) Rewrite Programming...Ch. 4 - (Process a string) Write a program that prompts...Ch. 4 - (Check SSN) Write a program that prompts the user...Ch. 4 - (Check substring) Write a program that prompts the...Ch. 4 - 23 (Financial application: payroll) Write a...Ch. 4 - (Order three cities) Write a program that prompts...Ch. 4 - (Generate vehicle plate numbers) Assume that a...Ch. 4 - (Financial application: monetary units) Rewrite...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
The spreadsheet in Microsoft Excel file Ch01Ex01_U10e.xlsx contains records of employee activity on special pro...
Using MIS (10th Edition)
Write a program that prints the following text. 1. In C, lowercase letters are significant. 2. m is where progr...
Programming in C
State whether each of the following is true or false. A selection statement repeats an action while a condition...
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
What output will be produced by the following code?
Java: An Introduction to Problem Solving and Programming (8th Edition)
The input operation that appears just before a validation loop is known as the ______. a. prevalidation read b....
Starting Out with Python (4th Edition)
A sentence is in disjunctive normal form (DNF) if it is the disjunction of conjunctions of literals. For exampl...
Artificial Intelligence: A Modern Approach
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- java: Run length coding is a method to represent a string in a more compact manner. Each character that occurs more than 2 times in a row is represented by the character and a number following it. Two examples are: "abba" → "abba""abcccbbbba" → "abc3b4a"Write a function that calculates how many characters the encoded string is shorter than the original.arrow_forwardDescription Write a Java program that compares two Strings. You have to declare a String text1 and assign it the value "programming" and then declare another String text2 and assign it the value "development". Your program should do the following: If the two Strings are exactly the same print to the screen "Exactly the same: True" otherwise print "Exactly the same: False". You may use boolean variables. If and only if the first comparison was false, a comparison should be done that ignores case sensitivity. If they are the same while ignoring the case print to the screen "Similar: True" otherwise print "Similar: False". Sample Input These sentences are the same. These sentences are the same. Sample Output Exactly the same: True Sample Input This sentence has Upper case and Lower case letters. This sentence has upper case and lower case letters. Sample Output Exactly the same: False Similar: True Sample Input Well something is wrong here Obviously they will get a false output Sample…arrow_forwardWhat is the output of the following: String s1="l am a student"; String s2-s1.substring(0,8)+ "graduate"; System.out.println(s1.length + s2); 141 am a graduate 141 am a student 141 am a sgraduate D) 131 am a graduatearrow_forward
- This is the issue and must be written in java:Write an application that accepts three specific User strings and shows either You have not entered the words alphabetically or You have entered the strings alphabetically depending on whether the strings were in alphabetic order.arrow_forwardGiven a pH value, return whether that value is 'alkaline', 'acidic', or 'neutral'. Return 'invalid'if the value given is less than 0 or greater than 14. Example: pHname(9) → alkaline WRITE IN PYTHON PLEASEarrow_forwardpublic static String[] getTokens(String raw, String delimiter){ // Line #1 goes here... int numTokens = st.countTokens(); // Line #3 goes here... for(int i = 0; i < numTokens; i++){ // Line #5 goes here } // Line #7 goes here } Using the code above, which one of these should be the code for "Line #7": ret[i] = st.nextToken(); return ret; String[] ret = new String[numTokens]; StringTokenizer st = new StringTokenizer(raw, delimiter);arrow_forward
- Language: Java Write a program that reads a sentence from the keyboard. Depending on the last character of the sentence, print the message identifying the sentence as declarative (ends with a period), interrogative (ends with a question mark), exclamatory (end with an exclamation point), or other. Hint: you can use charAt() method from the String class to extract the last character of the input line. The character of a String str is at str.length()-1 position. For taking a sentence as input use the nextLine() method from the Scanner class. You have to use if/else if selection. Sample input and output: Sample 1 Input: How are you? Output: Interrogative Sample 2 Input: I am good. Output: Declarative Sample 3 Input: That is amazing! Output: Exclamatory Sample 4 Input: Although, Output: Other Answer:arrow_forwardQuestion 3 Write a program that finds the equivalent series and parallel resistance for a collection of resistor values. Your program should first read in the number of resistors and then compute the equivalent series resistance for all resistors in the collection and the equivalent parallel resistance. For example, if there are 3 resistors of 100, 200, and 300 Ohms, respectively, their equivalent series resistance is 100+200+300 and their equivalent parallel resistance is 1(1/100+1/200+1/300). Your program should read each resistance value (R), add R to the series sum (RS) and add 1/R to the parallel sum (RP). After loop exit, display RS and 1/RP.arrow_forwardHelp me please: A palindrome is a string that reads the same both forward and backward. For example, the string madam is a palindrome. Write a program that uses a recursive function to check whether a string is a palindrome. Prompt the user for a string. If the string is a palindrome output a message in the following format: madam is a palindrome else Hello is not a palindrome Your program must contain a value-returning recursive function that returns true if the string is a palindrome and false otherwise. Do not use any global variables; use the appropriate parameters.arrow_forward
- This code must be in Python: START OF PLAY The player starts with 100 points. They have ten attempts (or rounds) to reach 500 points to win. Each round, the player "bets" some amount of points. See gameplay as follows: A HIGH/LOW ROUND (1) The player is shown an initial random card.Cards have a value from 2-14; however, these values are converted to a string as follows: 2-9 are converted to their string equivalent "2", "3", ... "9"10 is "T", 11 is "J", 12 is "Q", 13 is "K" and 14 is "A" (2) After the play sees the first card, they should guess if the next card will be higher (i.e., greater than the current card) or lower (i.e., a lower value than the first card).They will do this by inputting "H" or "L" (lowercase "h" and "l" will also be accepted as valid input). (3) After they input their "high" or "low" guess, the player bets a number of points that their guess will be right. The bet must be between 1 and the total amount of points the player has.1 (4) After the bet amount is…arrow_forwardImplement the following function which accepts a string as parameter and reverses it, without using any function from the string library. void strReverse(char *str)arrow_forwardpublic static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current stringarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Files & File Systems: Crash Course Computer Science #20; Author: CrashCourse;https://www.youtube.com/watch?v=KN8YgJnShPM;License: Standard YouTube License, CC-BY
UNIX Programming (Part - 10) The File System (Directories and Files Names); Author: ITUTEES;https://www.youtube.com/watch?v=K35faWBhzrw;License: Standard Youtube License