Variabls and operators

day3.cpp

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+#include<iostream>
+using namespace std;
+int main()
+{
+	//variabes
+	int a=10;
+	int b=20;		//integer take 4 byte
+
+	cout<<"The value against A and B is:"<<a<<" "<<b<<endl;
+	cout<<"Size of variable A is:"<<sizeof(a)<<endl;
+	cout<<"Size of variable B is:"<<sizeof(b)<<endl;
+
+	char name='a';
+	cout<<"The value of the name is: "<<name<<" and Size of char "<<sizeof(name)<<endl;
+
+	bool value=true;
+	cout<<"The value of the bolean is: "<<value<<" size of "<<sizeof(value)<<endl;
+
+	double val=134465758;			//precedence upto 15 value
+	cout<<"The value of doube val is: "<<val<<" size of val is:"<<sizeof(val)<<endl;
+
+	float num=32.1;
+	cout<<"The value of float value is:"<<num<<" size of num is:"<<sizeof(num)<<endl;
+
+	int apple; 				//take input from the user
+	cout<<"Enter the number for the apple:"<<endl;
+	cin>>apple;
+	cout<<"The total number for the apple is: "<<apple<<endl;
+
+
+	//take two number from the user nad print their sum:
+	int num_1=20;
+	int num_2=30;
+	cout<<"Enter the Number1 and Number2: "<<endl;
+	cout<<"The sum of two number is : "<< num_1+num_2 <<endl;
+
+	//increment decrement pre increment and vice versa
+	int value1=30;
+	cout<<"post increment:"<<value1++<<endl; 	//it will print 30 then increase value
+	cout<<"The value after inrement is:"<<value1<<endl;
+
+	//now the pre increment same like pre decrement
+	int value2=23;
+	cout<<"The orignal value is:"<<value2<<endl;
+	cout<<"The value after pre increment is:"<<++value2<<endl;
+
+	//swap two number y using third variable
+	int number1=12;
+	int number2=13;
+	cout<<"The orignal value of number1 is:"<<number1<<endl;
+	cout<<"The orignal value of number2 is:"<<number2<<endl;
+	int temp=number1;
+	number1=number2;
+	number2=temp;
+	cout<<"The value after swapping"<<endl;
+	cout<<"Now the value of the Number1 is: "<<number1<<endl;
+	cout<<"Now the value of the Number2 is: "<<number2<<endl;
+
+
+	//now the relational operator
+	int number_1=12;
+	int number_2=15;
+	cout<<"The Comparison opr is:"<<(number_1==number_2)<<endl;   //it will give the zero becuase num1 and num2 not same
+	cout<<"The not equal opr is:"<<(number_1 != number_2)<<endl; //it will true
+	cout<<"The number_1 > number_2 is:"<<(number_1 > number_2)<<endl; 	//it will return 0
+	cout<<"The number_1 < number_2 is:"<<(number_1 < number_2)<<endl;
+
+
+	//logical operator
+	// && || ~   //1 for false and 0 for true
+	int exp1=5;
+	int exp2=6;
+	cout<<"The && operator is: "<<(exp1 && exp2)<<endl; //it will gave falase
+	cout<<"The || operator is: "<<(exp1 || exp2)<<endl;
+
+	//bitwise operator
+
+	int expersiion=11;
+	cout<<"The left shift operator is: "<<(expersiion<<2)<<endl; //(left-shift) it will gave us 44 answer
+	cout<<"The Right shift operator is: "<<(expersiion>>2)<<endl; //right shift operator  gave 2 result
+
+	//switch case
+	int expression_number;
+	cout<<"Enter the number of the week 1 to 7"<<endl;
+	cin>>expression_number;
+
+	switch (expression_number){
+		case 1:
+			cout<<"its Monday..";
+			break;
+		case 2:
+			cout<<"its Tuesday..";
+			break;
+		case 3:
+			cout<<"its wednensday..";
+			break;
+		case 4:
+			cout<<"its Thursday..";
+			break;
+		case 5:
+			cout<<"its friday..";
+			break;
+		case 6:
+			cout<<"its Saturday..";
+			break;
+		case 7:
+			cout<<"its Sunday..";
+			break;
+		default:
+			cout<<"Number is invalid"<<endl;
+	}
+
+}
+
+
+