Computer Applications
What will the following code output:
String s = "malayalam";
System.out.println(s.indexOf('m'));
System.out.println(s.lastIndexOf('m'));
Answer
0
8
Working
indexOf() returns the index of the first occurrence of the specified character within the current String object. The first occurrence of 'm' is at index 0, thus 0 is printed first.
lastIndexOf() returns the index of the last occurrence of the specified character within the String object. The last occurrence of 'm' is at index 8, thus 8 is printed next.
Related Questions
Define a class to accept a string and convert the same to uppercase, create and display the new string by replacing each vowel by immediate next character and every consonant by the previous character. The other characters remain the same.
Example:
Input : #IMAGINATION@2024
Output : #JLBFJMBSJPM@2024Write a Java program to enter any sentence and convert the sentence to uppercase. Print only those words of the sentence whose first and last letters are the same.
The following code to compare two strings is compiled, the following syntax error was displayed – incompatible types – int cannot be converted to boolean.
Identify the statement which has the error and write the correct statement. Give the output of the program segment.
void calculate() { String a = "KING", b = "KINGDOM"; boolean x = a.compareTo(b); System.out.println(x); }