Q. What is the difference between the Switch statement and if- else ladder statements?|
S.No. |
Switch statement |
If- else-if ladder statements |
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Instead of using the if-else-if Ladder
control statement, the Switch Statement is available in program C for
Handling multiple choices. In Switch statement three keywords are used
switch, case, and default. we can use integer. constant. but we can not use floating
point and string constants.
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This
is a type of nesting in which there is an if...else statement in every else
part except the last else part. This type nesting is called the else if
Ladder Statement.
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Syntax: Switch(expression) { case constant 1: statement; break; case constant 2: statement; break; case
constant 3: statement; break; default; statement }
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Syntax: if(Condition
1)
Statement A; else if(Condition
2)
Statement B; else if(Condition
3)
Statement C;
else if(Condition 4)
Statement C;
else
Statement D;
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3. |
It’s also called cases control
statement. |
It’s also called loader if
statement.
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4. |
In switch statements we use
switch keyword. |
Here we use else if keywords.
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5. |
It is easy to use &
understand. |
It is complex statements.
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6. |
It can have different cases for
different conditions. |
But there is no different cases
for different conditions. |
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7. |
In this statement, we can not use
relational & logical operators. |
In this we can use relational
& logical statements.
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8. |
#include<stdio.h> #include<stdio.h> void main() { int ch; printf("\n1.
press ch=1 for monday. \n2. press ch=2 for tuesday.\n3. press ch=3 for
wednesday. \n4.press ch=4 for thursday. \n5.press ch=5 for friday.\n6.press
ch=6 for saturday. \n7. press ch=7 for sunday.");
printf("\n
enetr your choice =");
scanf("%d", &ch); switch(ch) {
case 1:
printf("today is monday");
break;
case 2:
printf("today is tuesday");
break;
case 3:
printf("today is wednesday");
break;
case 4:
printf("today is thursday");
break;
case 5:
printf("today is friday");
break;
case 6:
printf("today is saturday");
break;
case 7:
printf("today is sunday");
break;
default:
printf("wrong choice Try Again!!!"); }
getch();
}
Output:
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#include<stdio.h> #include<stdio.h> void main() { int
ch;
printf("\n1. press ch=1 for monday. \n2. press ch=2 for tuesday.\n3.
press ch=3 for wednesday. \n4.press ch=4 for thursday. \n5.press ch=5 for
friday.\n6.press ch=6 for saturday. \n7. press ch=7 for sunday.");
printf("\n enetr your choice =");
scanf("%d", &ch);
if(ch==1) {
printf("today is monday"); } else
if(ch==2) {
printf("today is tuesday"); } else
if(ch==3) {
printf("today is wednesday"); } else
if(ch==4) {
printf("today is thursday"); } else
if(ch==5) {
printf("today is friday"); } else
if(ch==6) {
printf("today is saturday"); } else
if(ch==7) {
printf("today is sunday"); }
getch(); } Output:
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