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Concept explainers
(a)
Exception handling:
In Java, the exception is an object used to signal the unexpected error occurred during a program execution.
- Exception is the error, which arises at run time and such errors can be handled in Java by exception handling.
Runtime exception:
- The runtime exceptions are indicated in RuntimeException class that defines the errors in programs such as out of bounds array, numeric errors, and so on.
- Some of runtime exceptions such as,
- ArithmeticException
- NullPointerException
- IndexOutOfBoundsException
- IllegalArgumentException
(b)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Declare the array variable
int[] list = new int[5];
//Display the result
System.out.println(list[5]);
}
}
Explanation:
In the above code,
- In t...
(c)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Declare the string variable
String s = "abc";
//Display the result
System.out.println(s.charAt(3));
}
}
Explanation:
In the above code,
- In the main function,
- Declare and i...
(d)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Create the object for Object class
Object o = new Object();
//Initialize the object to string variable
String d = (String)o;
}
}
Explanation:
In the above ...
(e)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Create the object for Object class
Object o = null;
//Convert "o" into string and then display it
System.out.println(o...
(f)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Divide the 1.0 by 0 and then display the result
System.out.println(1.0/0);
}
}
Explanation:
In the above...
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Chapter 12 Solutions
Introduction to Java Programming and Data Structures Comprehensive Version (11th Edition)
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- Write a program that reads the text file's contents and calculates and outputs the following in this order: • The number of words in the file • The number of lines in the file • The number of uppercase letters in the file • The number of lowercase letters in the file • The number of digits in the file • The number of letter H's in the file • The number of whitespace characters in the file NOTE: Your program should include at least one try-except error handling statement block. Your program should also validate any input that could cause your program to crash. I'm Henery The Eighth, I Am! Henery The Eighth, I Am, I am!I got married to the widow next door,She's been married seven times before.And ev'ryone was a Henery,She wouldn't have Willie or a Sam.I'm her eighth old man named Henery,Henery the Eighth, I Am!Second verse same as the first!I'm Henery The Eighth, I Am! Henery The Eighth, I Am, I am!I got married to the widow next door,She's been married seven times before.And…arrow_forwardFigure 4-40 Modern Database Management, 13th edition, question 4-53arrow_forwardWhich of the following needs improvement in the dashboard shown? A. Instructional clarity missing for the views B. Filter placed at the top of the dashboard C. Inconsistent use of colors to represent missed goals D. Dashboard title too largearrow_forward
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