what are the values of the variables when runned? int j,k boolean m j = 1 k = j++ m = (++k == j++) ------------------ int x = 3 if (x == 2) x= 0 if (x==3) x++ else x+=2 --------------- how many times will it be looped for(int x = 0; x== 2; x++){ //body of the loop }

what are the values of the variables when runned? int j,k boolean m j = 1 k = j++ m = (++k == j++) ------------------ int x = 3 if (x == 2) x= 0 if (x==3) x++ else x+=2 --------------- how many times will it be looped for(int x = 0; x== 2; x++){ //body of the loop }

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

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On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved by executingcout << fixed << setprecision(2); once before all other cout statements. Ex: If the input is: 440.0 (which is the A key near the middle of a piano keyboard), the output is: 440.00 466.16 493.88 523.25 554.37 Note: Use one statement to compute r = 2(1/12) using the pow function (remember to include the cmath library). Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4.
On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved by executingcout << fixed << setprecision(2); once before all other cout statements. Ex: If the input is: 440.0 (which is the A key near the middle of a piano keyboard), the output is: 440.00 466.16 493.88 523.25 554.37 Note: Use one statement to compute r = 2(1/12) using the pow function (remember to include the cmath library). Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4. I am having trouble putting them on one sentence line.
THIS IS IN JAVA. A restaurant serves breakfast before 11 am, after which they serve lunch. Which expression for XXX outputs the correct string for any time? Variable time ranges from 0 to 23 (e.g., 13 means 1 pm). mealString=XXX;// Output mealString A. (time > 11) ? "Breakfast" : "Lunch" B. (time == 11) ? "Breakfast" : "Lunch" C. (time < 11) ? "Breakfast" : "Lunch" D. (time != 11) ? "Breakfast" : "Lunch"
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On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved by executingcout << fixed << setprecision(2); once before all other cout statements.
What is the number of operations executed when the following Java code runs? Your answer is expected to be in terms of n. The rules for counting operations in Pseudocode apply for Java code, StdOut.println() and Integer.parseInt(args[0]) are equivalent to DISPLAY and READ respectively. public class RandomSequence { public static void main ( String[] args ) { int n = Integer.parseInt(args[0]); for (int i = 0; i < n; i++) { StdOut.println(Math.random()); } } }
Write a program that reads HAND_SIZE cards from the user, then analyzes the cards and prints out the type of poker hand that they represent. (HAND_SIZE will be a global constant, typically 5, but your program must still work if it is set to something other than 5.) Poker hands are categorized according to the following hand-types: Straight flush, four of a kind, full house, straight, flush, three of a kind, two pairs, pair, high card. To simplify the program we will ignore card suits, and face cards. The values that the user inputs will be integer values from LOWEST_NUM to HIGHEST_NUM. (These will be global constants. We'll use LOWEST_NUM = 2 and HIGHEST_NUM = 9, but your program must work if these are set to something different.) When your program runs it should start by collecting HAND_SIZE integer values from the user and placing the integers into an array that has HAND_SIZE elements. It might look like this: Enter 5 numeric cards, no face cards. Use 2 - 9. Card 1: 8 Card 2: 7 Card…
Write a program that reads HAND_SIZE cards from the user, then analyzes the cards and prints out the type of poker hand that they represent. (HAND_SIZE will be a global constant, typically 5, but your program must still work if it is set to something other than 5.) Poker hands are categorized according to the following hand-types: Straight flush, four of a kind, full house, straight, flush, three of a kind, two pairs, pair, high card. To simplify the program we will ignore card suits, and face cards. The values that the user inputs will be integer values from LOWEST_NUM to HIGHEST_NUM. (These will be global constants. We'll use LOWEST_NUM = 2 and HIGHEST_NUM = 9, but your program must work if these are set to something different.) When your program runs it should start by collecting HAND_SIZE integer values from the user and placing the integers into an array that has HAND_SIZE elements. It might look like this: Enter 5 numeric cards, no face cards. Use 2 - 9. Card 1: 8 Card 2: 7 Card…
Can someone just comment this program out? Please... explain what each line does or atleast for most of the important lines -------------------------------------------- import java.util.*;import java.io.*; public class InsertionSort{ static int shiftcount; static int gch; public static void insertionLast(int [] arr, int size) { if(gch==2) { int L=arr[size-1]; //inserting only the last element in already sorted order int i,k; for(i=size-2;i>=0 && arr[i]>L;i--) { arr[i+1]=arr[i]; shiftcount++; } arr[i+1]=L; } else { int L=arr[size-2]; //inserting only the last element in already sorted order int i,k; for(i=size-3;i>=0 && arr[i]>L;i--) { arr[i+1]=arr[i]; } arr[i+1]=L; System.out.println("Sorted Array After Insertion…
There are N students in a class. Each student got arr[i] (1 <= i <= N) marks in mathematics exam. Geek loves mathematics and he got X marks. Now geek is curious to know, how many students in his class got marks greater than that of Geek's. Input Format:The first line of the input contains a single integer T denoting the number of test cases. The description of T test cases is as follows: The first line of each test case contains two space-separated integers N and X. The second line contains N space-separated positive integers representing array arr[ ]. Output Format:In a new line, for each test case, print the count of students who got marks greater than X.Constraints:1 <= T <= 101 <= N <= 1000001 <= arr[i], K <= 100000Example: Sample Input: 2 3 2 4 1 3 4 9 4 8 1 2 Sample Output: 2 0 Explanation: Testcase 1: Students with marks 4 and 3 got higher marks than Geek who got 2 marks.
ISP-Java Write a program whose input is two integers, and whose output is the first integer and subsequent increments of 10 as long as the value is less than or equal to the second integer. For coding simplicity, output a space after every integer, including the last. Ex: If the input is: -15 30 the output is: -15 -5 5 15 25 Ex: If the second integer is less than the first as in: 20 5 the output is: Second integer can't be less than the first.
Write an application that reads an integer value from the user and prints the sum ofall even integers between 2 and the input value, inclusive. Print an error message ifthe input value is less than 2. Use Java. Sample Run Examples: Example 1:the user enters 14Output: Sum: 56Example 2:the user enters 1Output: Error number must be greater than 1