If str="Long String", what will be the value of the following variables: a. String str1=str.substring(3,str.indexOf("i")); b. String str2 = str1.toUpperCase().substring(5)+str.substring(0,3); c. boolean test=str1.toUpperCase().indexOf("r") == str1.indexOf("r");

If str="Long String", what will be the value of the following variables: a. String str1=str.substring(3,str.indexOf("i")); b. String str2 = str1.toUpperCase().substring(5)+str.substring(0,3); c. boolean test=str1.toUpperCase().indexOf("r") == str1.indexOf("r");

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter7: Characters, Strings, And The Stringbuilder

Section: Chapter Questions

Problem 19RQ

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Concept explainers

Methods of StringBuilder class

The StringBuilder class can be used to create mutable strings. The methods defined in the StringBuilder class are widely used to manipulate and concatenate strings. It is a non-synchronized class which has public methods that can be accessed by multiple threads. It is not thread-safe.

Question

a. If str="Long String", what will be the value of the following variables:
a. String str1=str.substring(3,str.indexOf("i"));
b. String str2 = str1.toUpperCase().substring(5)+str.substring(0,3);
c. boolean test=str1.toUpperCase().indexOf("r") == str1.indexOf("r");

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