Define dirty read, nonrepeatable read, and phantom read.
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Define dirty read, nonrepeatable read, and phantom read.
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- 93. The technique which involves the arithmetic function or logical function is classified as a. clustering technique b. folding technique c. spanning technique d. hashing techniqueJAVA LANGUAGE CODE Postfix Calculator by CodeChum Admin One good implementation of computing infix expressions is to transform them to postfix and then evaluate via the postfix expression. Infix expressions is the common way of writing arithmetic expressions. The binary operator come between them as shown below: 2 * 5 + 9 - 10 / 20 In postfix expressions, the operands come first before the operator: 2 5 * 9 + 10 20 / - A stack can be used to evaluate postfix expressions. The operands are pushed onto the Stack and when an operator is found two operands are popped and the operation is performed and finally the result is pushed back onto the Stack. The final answer will be the lone element of the Stack. Input The first line contains a positive integer n representing the number of postfix expressions. What follows are n postfix expressions themselves. 5 10 20 + 30 15 2 * + 100 20 30 + / 90 20 10 + + 0 / 9 3 - 10 + 2 * Output A single line containing the result of…C plus plus language : We need to have a generic module which reads in file and gives the output in the format which would facilitate other programs to do comparison like the one we saw above to carry out analysis and comparison. Response Required: Write a program that reads a given text, outputs the text as is, and also prints the number of lines and the number of times each letter appears in the text. An uppercase letter and a lowercase letter are treated as being the same; that is, they are tallied together. Since there are 26 letters, we use an array of 26 components to perform the letter count. We also need a variable to store the line count. The text is stored in a file, which we will call textin.txt. The output will be stored in a file, which we will call textout.txt Input: A file containing the text to be processed. Output: A file containing the text, number of lines, and the number of times a letter appears in the text
- Convert from C to C++ .Thank you. / include all required libraries#include<stdio.h>#include<stdlib.h>#include<sys/types.h>#include<sys/wait.h>#include<unistd.h> // variable to store number of generationsint num_generations; // function to print the generationsvoid printGeneration(int n){// stop if number of generations are reachedif(n>num_generations)return; // create a forkpid_t p = fork(); // generate new generationsif(p==0)printGeneration(n+1);else if(p>0)wait(0); // wait until child process terminates // print the present generationif(p!=0){// if n is 0if(n==0)printf("Parent. "); // print parent// if n is 1else if(n==1)printf("Child. "); // print child// for all other caseselse{// print grandchildrenfor(int i=0;i<n-2;i++)printf("Great ");printf("Grandchild. ");}// print pid and ppidprintf("pid: %d ppid: %d\n",getpid(),getppid());}} // main functionint main(int argc, char* argv[]){// if no arguments are providedif(argc==1){// print…C++ Language: write code. and algorithm or related theory of the following question. Give secreenshoots. Narrative 2: We need to have a generic module which reads in file and gives the output in the format which would facilitate other programs to do comparison like the one we saw above to carry out analysis and comparison. Response Required: Write a program that reads a given text, outputs the text as is, and also prints the number of lines and the number of times each letter appears in the text. An uppercase letter and a lowercase letter are treated as being the same; that is, they are tallied together. Since there are 26 letters, we use an array of 26 components to perform the letter count. We also need a variable to store the line count. The text is stored in a file, which we will call textin.txt. The output will be stored in a file, which we will call textout.txt Input: A file containing the text to be processed. Output: A file containing the text, number of lines, and the number…Write in C++. Description: wzip and wunzip class overview: The next tools you will build come in a pair, because one (wzip) is a file compression tool, and the other (wunzip) is a file decompression tool. The type of compression used here is a simple form of compression called run-length encoding (RLE). RLE is quite simple: when you encounter n characters of the same type in a row, the compression tool (wzip) will turn that into the number n and a single instance of the character. Thus, if we had a file with the following contents: aaaaaaaaaabbbb the tool would turn it (logically) into: 10a4b The exact format of the compressed file is quite important; here, you will write out a 4-byte integer in binary format followed by the single character in ASCII. Thus, a compressed file will consist of some number of 5-byte entries, each of which is comprised of a 4-byte integer (the run length) and the single character. To write out an integer in binary format (not ASCII), you…