Programming Example
Design a class to overload a function check( ) as follows:
Study this program carefully to understand the logic, output, and explanation in a structured way.
Design a class to overload a function check( ) as follows:
void check (String str , char ch ) — to find and print the frequency of a character in a string.
Example:
Input:
str = "success"
ch = 's'
Output:
number of s present is = 3
void check(String s1) — to display only vowels from string s1, after converting it to lower case.
Example:
Input:
s1 ="computer"
Output : o u e
public class RAnsariOverload1
{
void check (String str , char ch ) {
int count = 0;
int len = str.length();
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if (ch == c) {
count++;
}
}
System.out.println("Frequency of " + ch + " = " + count);
}
void check(String s1) {
String s2 = s1.toLowerCase();
int len = s2.length();
System.out.println("Vowels:");
for (int i = 0; i < len; i++) {
char ch = s2.charAt(i);
if (ch == 'a' ||
ch == 'e' ||
ch == 'i' ||
ch == 'o' ||
ch == 'u')
System.out.print(ch + " ");
}
}
}First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.