Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 10.23PE
(Implement the String class) The String class is provided in the Java library. Provide your own implementation for the following methods (name the new class MyString2):
public MyString2(String s);
public int compare(String s);
public MyString2 substring(int begin);
public MyString2 toUpperCase();
public char[ ] toChars();
public static MyString2 valueOf(boolean b);
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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…
Do not use static variables to implement recursive methods.
USING JAVA:
// P6
public static int countSubstrings(String s1, String s2) {
}
Write a recursive method countSubstrings that counts the number of non-overlapping occurrences of a string s2 in a string s1. Use the method indexOf() from String class.
As an example, with s1=”abab” and s2=”ab”, countSubstrings returns 2. With s1=”aaabbaa” and s2=”aa”, countSubstrings returns 2. With s1=”aabbaa” and s2=”AA”, countSubStrings returns 0.
Show the output on the following strings:
s1 = “Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities. Java applications are typically compiled to bytecode (class file) that can run on any Java Virtual Machine (JVM) regardless of computer architecture.…
Chapter 10 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 10.2 - Prob. 10.2.1CPCh. 10.3 - Is the BMI class defined in Listing 10.4...Ch. 10.4 - Prob. 10.4.1CPCh. 10.4 - Prob. 10.4.2CPCh. 10.4 - Prob. 10.4.3CPCh. 10.4 - Prob. 10.4.4CPCh. 10.7 - Prob. 10.7.1CPCh. 10.7 - Prob. 10.7.2CPCh. 10.7 - How do you convert an integer into a string? How...Ch. 10.7 - Show the output of the following code: public...
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