When a child exits is returns a number in response to the parents having called wait(&status). If the number which a child returns is øx1A05, Did the child produce a core dump? Yes, it did. No, it did not.

When a child exits is returns a number in response to the parents having called wait(&status). If the number which a child returns is øx1A05, Did the child produce a core dump? Yes, it did. No, it did not.

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

See similar textbooks

Similar questions

use java to solve this
The People class holds an unsorted list of humans. Initially, this list is empty. Existing Human objects may be added to the list using an insert method. Upon inserting a Human object, it is added to the array at the next available position and the position value in incremented. If the position value is equal to the size value, do not insert the Human. Instead, throw an exception that your driver can catch to print an error that the People object is full. Create a People class with the following features: Each People object has a statically allocated array of Human objects. Size attribute representing the maximum size of the array. Position attribute representing the next free position in the array. Default constructor with no arguments. Search method that takes a string argument and returns a Human object. This method returns the first Human object with a name matching the string argument. In other words, pass the name of a Human as a string, search the list of humans for…
Declare a struct Employee with fields Name as C-String, eID as int, Saraly as double with eID as key. Suppose you have a file Emplyee.dat which has some number of records (of type Employee) in it. Now read a key from user and delete record of this key from file.
Step1- Write a Java program in Netbeans that implements parallel programming using the Fork/Join framework. The program should initially generate 15 million random numbers. This should be read into an array of doubles. Step 2- Then it should make use of a method that uses this array to calculate the sum of these doubles. Step 3-This program should make use of the subclasses in the Fork/Join Framework abd should also output the number of processors available. Step 4 - Have a clear screenshoot of code in the IDE and a screenshot of the code running.
Write a program in java that forms a green square inside a JPanel. Once you press space, the square should move from one side to the other horizontally (for example from left topto the right top).When the square hits the edge of the Panel, it should move the negative direction to reach to the other side. The square must be updated using a Runnable and therefore,make sure that it is utilizing concurrency properly. You know that you need to override the method run, coming from a Runnable to implement basic concurrency.Another trick, when the user presses S key, a new square is created and they move simultaneously (as they are concurrent objects). Make sure they don't stand on top of eachother; change their Y coordinates a bit to make the other squares a bit lower in the screen. We should be able to create 5 squares in your environment. Beyond 5, you shouldprevent creation of additional squares.
Write a program that finds all occurrences of a word in all the filesunder a directory, recursively. Pass the parameters from the command line asfollows:java Exercise18_30 dirName word
In this task, we would like to generate a keyed hash (i.e. MAC) for a file. We can use the “-hmac” option (this option is currently undocumented, but it is supported byopenssl). The following example generates a keyed hash for a file using the HMAC-MD5 algorithm. The string following the “-hmac” option is the key. “openssl dgst -md5 -hmac "abcdefg" filename” Please generate a keyed hash using HMAC-MD5, HMAC-SHA256, and HMAC-SHA1 for any file that you choose. Please try several keys with different lengths. 1. Do we have to use a key with a fixed size in HMAC? 2. If so, what is the key size? 3. If not, why?
/** * Removes the specified key and its associated value from this symbol table * (if the key is in this symbol table). Takes advantage of the fact that the * keys appear in increasing order to terminate` early when possible. * * @param key the key * @throws IllegalArgumentException if {@code key} is {@code null} */ public void delete(Key key) { // TODO // Change this code to make use of the fact that the list is sorted to // terminate early when possible. // As this code already uses recursion, the private helper function is // already present below, but it will need to be changed to terminate // early when appropriate. if (key == null) throw new IllegalArgumentException("argument to delete() is null"); first = delete(first, key); } // delete key in linked list beginning at Node x // warning: function call stack too large if table is large private Node delete(Node x, Key…
Write a Java program that implements parallel programming using the Fork/Join framework. Step1- The program should initially generate 15 million random numbers. This should be read into an array of doubles. Step 2- Then it should make use of a method that uses this array to calculate the sum of these doubles. Step 3-This program should make use of the subclasses in the Fork/Join Framework. it must also output the number of processors available. Lastly, Have a clear screenshoot of code in the IDE and a screenshot of the code running.
Write a java program that will generate a permuterm index from the terms in the files in an input directory. The program should prompt the user for a single directory and find all of the terms (after processing) in each file in it. The program should then find the permutations of each term and store them (keeping track of the original word each permutation comes from). After all of the text files in the directory have been read, the output of the program should display the permutations in sorted order along with the original term. Use the dollar sign as the end of term symbol.
Write a complete Java program with comments in main and in each method. Create your own names for variables, methods and parameters. Sample input Your program must work for all values, not just for this samplet: xl 92 78 84 95 99 x2 98 85 83 81 79 idtern 88 83 75 88 83 final 89 81 77 81 89 Design a Java dass that reads in a series of records from a file and processes them as follows: 1. main will invoke a method to read the input data. The method will a. read a record containing the name of an exam and five grades (don't store all 5!) b. compute the lowest grade C. store the name in an acray d. store the lowest grade in a parallel array. Repeat this until all records have been read in. There will be no more than 80 records. Finally, the method will return to nain the number of records read. 2. main will invoke a method to do two things. a. It will add 5 pts to the grade for any exam that is not named "final". b. It will count how many grades in the array are greater than the next…
One common use of a hash table is to build a glossary, or dictionary, of terms.In this section, we demonstrate one way to use a hash table for just such ause—a computer terms glossary.The program works by first reading in a set of terms and definitions from atext file. This process is coded in the BuildGlossary subroutine. The structureof the text file is: word,definition, with the comma being the delimiter betweena word and the definition. Each word in this glossary is a single word, but theglossary could easily work with phrases instead. That’s why a comma is usedas the delimiter, rather than a space. Also, this structure allows us to use theword as the key, which is the proper way to build this hash table.Another subroutine, DisplayWords, displays the words in a list box so theuser can pick one to get a definition. Since the words are the keys, we can usethe Keys method to return just the words from the hash table. The user canthen see which words have definitions.To retrieve a…