DifferenceModerate2 marks
Differentiate between if else if and switch-case statements.
Topic: if-else-if and switch-case
Previous-year question practice database
Answer
Exam answer
The difference is shown in the table.
Explanation
The heart of the answer is that if-else-if is general while switch is restricted to equality against constants. Give that first, then the data-type limitation as the second difference. A practical way to remember it: you can write if(marks > 80) but you cannot write case > 80 — switch has no way to express a range.
Comparison
| if else if | switch case |
|---|---|
| Can test any kind of condition — ranges, equality, and combinations using && or | |
| Works with any data type, including double and String comparisons. | Works only with byte, short, int, char, enum and (since Java 7) String — not with double or float. |
More from Revision Tour II
Read the if program segment given below:
if(a > b)
z = 25;
else
z = 35;
Which one of the following is the correct conversion of the if program segment to ternary?2026The earth spins on its axis completing one rotation in a day. The earth revolves around the sun in 365 days to complete one revolution. What is the Java concept depicted in the given picture?2026Rewrite the following program segment using a for loop.
int a = 5, b = 10;
while(b > 0)
{
b -= 2;
}
System.out.println(a * b);2026Users must be above 10 years to open a self-operated bank account. Write this logic using a ternary operator and store the result (the eligibility message) in a String variable named idStatus and print it.2026Give the output of the following program segment and mention how many times the loop is executed.
int K = 1;
do
{
K += 2;
System.out.println(K);
} while(K <= 6);2026Write a program to accept a number and check if it is a Mark number or not. A number is said to be Mark when the sum of the squares of each digit is an even number as well as the last digit of the sum and the last digit of the number given is the same.
Example: n = 246
sum = 2 x 2 + 4 x 4 + 6 x 6 = 56
56 is an even number as well as last digit is 6 for both sum as well as the number.2026