Chapter 8, Problem 3FTE

Explanation of Solution

Given code segment:

int number; //Line 1

String str = "99"; //Line 2

//Convert str to an int

number = str.parseInt(); //Line 3

Errors in the above program:

Error #1:

In the above code segment, “Line 3” contains an error. The parse methods are used to convert the string to a number. The method accepts string as its argument. The method “parseInt ()” does not contains any argument. Hence the line should be given as:

//Convert str to an int

number = str.parseInt(str); //Line 3

Error #2:

In the above code segment, “Line 3” contains an error. If the user wants to convert the string to integer then the syntax to convert the given string to integer is as follows.

int variableName = Integer.parseInt(String stringObject);

Therefore, “str.parseInt ()” should be written as “Integer.parseInt ()”.

Corrected program:

//Import required header files

import java.io.*;

import java.util.Scanner;

import java.util.StringTokenizer;

import java.text...