Java allows for methods to be chained together. Consider the following message from the captain of a pirate ship:String msg1 = " Maroon the First Mate with a flagon of water and a pistol! "; We want to change the message to read the message msg1: String msg2= “Maroon the Quartermaster with a flagon of water.” Three changes need to be made to adjust the string as desired: Trim the leading and trailing whitespace.Replace the substring First Mate with Quartermaster.Remove "and a pistol!"Add a period at the end of the sentence.A “chaining1” method which will apply in sequence 4 operations to perform the above. We will use the trim, replace, and substring methods, in this order. Thus the chaining1 method will receive a string msg1 and return a string msg2. Make sure msg2 is printed.A “chaining2” method which will apply the 4 operations above in one single statement. Thus the chaining2 method will receive a string msg1 and return as string msg2. Make sure msg2 is printed

Answered: Java allows for methods to be chained…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Java allows for methods to be chained together. Consider the following message from the captain of a pirate ship:

String msg1 = " Maroon the First Mate with a flagon of water and a pistol! ";

We want to change the message to read the message msg1:

String msg2= “Maroon the Quartermaster with a flagon of water.”

Three changes need to be made to adjust the string as desired:

Trim the leading and trailing whitespace.
Replace the substring First Mate with Quartermaster.
Remove "and a pistol!"
Add a period at the end of the sentence.

A “chaining1” method which will apply in sequence 4 operations to perform the above. We will use the trim, replace, and substring methods, in this order. Thus the chaining1 method will receive a string msg1 and return a string msg2. Make sure msg2 is printed.
A “chaining2” method which will apply the 4 operations above in one single statement. Thus the chaining2 method will receive a string msg1 and return as string msg2. Make sure msg2 is printed

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Java introduction:-

Software written in Java, an object-oriented programming language, can run on various platforms. Java borrows most of its syntax from the C and C++ programming languages, and when a programmer creates a Java application, the compiled code (also known as bytecode) runs on most operating systems (OS), including Windows, Linux, and Mac OS.

James A. Gosling, a former computer scientist with Sun Microsystems, along with Mike Sheridan and Patrick Naughton created Java in the middle of the 1990s.

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