Java program to find the frequency of one string in another string.
public class WordFrequencyCounter {
public static void main(String args[]) {
Scanner scan = new Scanner(System.in);
System.out.println("enter main string");
String s = scan.nextLine();
System.out.println("enter string to be searched");
String f = scan.nextLine();
s = s + " ";
int l = s.length();
char a;
int c = 0;
String s1 = "";
for (int i = 0; i < l; i++) {
a = s.charAt(i);
if (a != ' ') {
s1 = s1 + a;
} else {
if (s1.equalsIgnoreCase(f) == true) {
c++;
}
s1 = "";
}
}
System.out.println("Frequency of the word " + f + " is " + c);
}
}
Output:
Enter main string
Umesh Kumar Kushwaha Kumar
enter string to be searched
Kumar
Frequency of the word Kumar is 2
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Category: Core Java, Interview Question, Programs, String, Written Test
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