EduSarva

Arrays Variables are used to store single piece of data. Arrays can store many piece of data or collection of data. Arrays like variable can store data of a specific datatype. #include <iostream> using namespace std; int main() { int num; //Integer variable num = 10; //assignment int num1 = 10; // declare and initialize cout << num << endl; cout << num1 << endl; int nums[3]; //Integer Array nums[0] = 2; // assignment nums[1] = 5; nums[2] = 8; int nums1[] = { 4, 2, 4 }; cout #include <iostream> using namespace std; int main() { char ch; //declare a char variable ch = 'a'; char chs[5]; //declare an array of 5 char chs[0] = 'a'; chs[1] = 'b'; chs[2] = 'c'; chs[3] = 'd'; chs[4] = 'e'; cout Output: #include <iostream> using namespace std; int main() { char ch; //declare a char variable ch = 'a'; char charArray[5]; //declare an array of 5 char ch...

Functions improves a program by modularizing it and allowing code to be reused. 3 steps: Declare the function - The functions should be declared at the top or it should be defined at the top Define the function - The declared function should be defined. Please note the the arguments and the return datatype should match. Call the function. The following program gives an example of a function that take two double value. The function does not return any value therefore it is declared as void. #include <iostream> using namespace std; void findSum(double, double); //1. Declare the function int main() { double num1, num2; cout << "Enter first number : "; cin >> num1; cout << "Enter second number : "; cin >> num2; findSum(num1, num2); //3. Call the function return 0; } void findSum(double i, double j) { //2. Define the function double result; result = i + j; cout << "The sum is : " << result <...

Examples #! /bin/bash # For loop for i in {1..10} do echo $i done #Another For Loop for ((i=1;i

Example 1 for name in $@ do if [ $name == and ]; then continue elif [ $name == bob ]; then break fi echo $name done

Example 1 #! /bin/bash #this program gets two numbers from the user and compare them read -p "Enter two numbers : " num1 num2 echo "The numbers are $num1 and $num2" if [ "$num1" -eq "$num2" ]; then echo "the numbers are equal" elif [ $num1 -gt $num2 ]; then echo "num1 is greater than num2" else echo "num1 is less than num2" fi Example 2 #! /bin/bash if [ -z $1 ]; then echo "Error: filename not given" echo "This utility backups a given file with an extension .bk" echo "Usage: if-demo.sh " exit 1 elif [ -d $1 ]; then echo "Error: " echo "directory found, instead of a file. This utility does not backup directory" exit 1 fi cp "$1" "$1.bk" Another example #! /bin/bash read -p "Enter the age...

#! /bin/bash echo "m-married, s-single" read -p "Enter you marital status." ans case $ans in m|M) echo "Married";; s|S) echo "single";; *) echo "invalid entry";; esac

Example 1 #include &ltiostream&gt using namespace std; int main() { int count=0; double num, total = 0, average; cout > num; if (num == 0) break; count++; total = total + num; cout Example 2 #include &ltiostream&gt using namespace std; int main() { int opt; do { cout > opt; switch (opt) { case 1: cout