modified: Chapter_3/07_Switch_Case_Instructions.c

new file: Chapter_3_Practice_Set/Questions.c

Author: VickyRohilla862

Chapter_3/07_Switch_Case_Instructions.c

@@ -12,4 +12,73 @@
  //code
  }
 */
-// The value of integer expression is matches against c1, c2, c3. If it matches any of these cases, that case along with all subsequenced "case" and "default" sattements are executed.
+// The value of integer expression is matches against c1, c2, c3. If it matches any of these cases, that case along with all subsequenced "case" and "default" sattements are executed.
+
+//example code:
+#include <stdio.h>
+int main(){
+ int a;
+ printf("Enter a: ");
+ scanf("%d", &a);
+ switch (a){
+ case 1:
+ printf("You entered 1");
+ case 2:
+ printf("You entered 2");
+ case 3:
+ printf("You entered 3");
+ case 4:
+ printf("You entered 4");
+ default:
+ printf("You didn't entered a value between 1-4. You entered %d", a);
+ }
+ return 0;
+}
+
+/*
+input: 
+ 3
+*/
+/*
+output:
+ You entered 3
+ you entered 4
+ You didn't entered a value between 1-4. You entered 3
+*/
+
+// To avoid this output, you use break statement like this:
+#include <stdio.h>
+int main(){
+ int a;
+ printf("Enter a: ");
+ scanf("%d", &a);
+ switch (a){
+ case 1:
+ printf("You entered 1");
+ break;
+ case 2:
+ printf("You entered 2");
+ break;
+ case 3:
+ printf("You entered 3");
+ break;
+ case 4:
+ printf("You entered 4");
+ break;
+ default:
+ printf("You didn't entered a value between 1-4. You entered %d", a);
+ break;
+ }
+ return 0;
+}
+
+// input: 3
+// output: You entered 3
+// Nothing else will be printed
+
+/*
+Note:
+ 1. We can use switch case statements even by writing cases in any order of our choice (Not necessarily ascending).
+ 2. Char values are allowed as they can be easily evaluated to an integer
+ 3. A switch can occur within another but in practice this is rarely done.
+*/

Chapter_3_Practice_Set/Questions.c

@@ -0,0 +1,24 @@
+/*
+1. What will be the output of the program:
+ int a = 10;
+ if(a = 11)
+ printf("I am 11");
+ else
+ printf("I am not 18");
+
+2. Write program to determine whether a student has passed or failed. To pass, a student requires a total of 40% and atleast 33% in each subject. Assume there are 3 subjects and take the marks as input from the user.
+
+3. Calculate the income tax paid by an employee to the government as per the slabs mentioned below:
+ Income Slab Tab
+ --------------------------
+ 2.5L-5.0L 5%
+ 5.0L-10.0L 20%
+ Above 10L 30%
+Note that there is no tax below 2.5L. Take income amount as input from the user.
+
+4. Write a program to find whether a year entered by the user is a leap year or not. Take year as input from the user.
+
+5. Write a program to determine whether a charactered entered by the user is lowercase or not.
+
+6. Write a program to find greatest of 4 numbers entered by the user.
+*/