String Methods: String class contains several methods, which are used to perform string manipulations. Some examples of string methods used for manipulating strings are: “equals(s1)” - Returns true if the given string is equals to string “s1”. “compareTo(s1)” - Returns an integer greater than “0” if the string is greater, returns “0” if both the strings are equals and returns less than “0” if the given string less than s1. “contains(s1)” -Returns true if “s1” is a substring of the given string. “indexof(ch)” - Returns the index of the first occurrence of character “ch” in the string. Else, it will return -1 if not matched. “lastIndexof(ch)” - Returns the index of the last occurrence of character “ch” in the string. Else, it will return -1 if not matched. “length()” - Returns the number of characters that the string contains . “charAt(index)” - Returns the character from the string at the specified index. “toUpperCase()” - Returns a new string contains uppercase letters. “toLowerCase()” - Returns a new string contains lower letters.

Question

Want to see the full answer?

Answer 1

Question

Chapter 2.9, Problem 2.30CP

Program Plan Intro

String Methods:

String class contains several methods, which are used to perform string manipulations.

Some examples of string methods used for manipulating strings are:

“equals(s1)” - Returns true if the given string is equals to string “s1”.

“compareTo(s1)” - Returns an integer greater than “0” if the string is greater, returns “0” if both the strings are equals and returns less than “0” if the given string less than s1.

“contains(s1)” -Returns true if “s1” is a substring of the given string.

“indexof(ch)” - Returns the index of the first occurrence of character “ch” in the string. Else, it will return -1 if not matched.

“lastIndexof(ch)” - Returns the index of the last occurrence of character “ch” in the string. Else, it will return -1 if not matched.

“length()” - Returns the number of characters that the string contains .

“charAt(index)” - Returns the character from the string at the specified index.

“toUpperCase()” - Returns a new string contains uppercase letters.

“toLowerCase()” - Returns a new string contains lower letters.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

I need help in my server client in C language

Exercise docID document text docID document text 1 hot chocolate cocoa beans 7 sweet sugar 2345 9 cocoa ghana africa 8 sugar cane brazil beans harvest ghana 9 sweet sugar beet cocoa butter butter truffles sweet chocolate 10 sweet cake icing 11 cake black forest Clustering by k-means, with preprocessing tokenization, term weighting TFIDF. Manhattan Distance. Number of cluster is 2. Centroid docID 2 and docID 9.

Change the following code so that there is always at least one way to get from the left corner to the top right, but the labyrinth is still randomized. The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. Take care that the player and the dragon cannot start off on walls. Also the dragon starts off from a randomly chosen position public class Labyrinth { private final int size; private final Cell[][] grid; public Labyrinth(int size) { this.size = size; this.grid = new Cell[size][size]; generateLabyrinth(); } private void generateLabyrinth() { Random rand = new Random(); for (int i = 0; i < size; i++) { for (int j = 0; j < size; j++) { // Randomly create walls and paths grid[i][j] = new Cell(rand.nextBoolean()); } } // Ensure start and end are…