OutputHard2 marks
Consider the following String array and give the output: String arr[] = {"DELHI", "CHENNAI", "MUMBAI", "LUCKNOW", "JAIPUR"}; System.out.println(arr[0].length() > arr[3].length()); System.out.print(arr[4].substring(0, 3));
Topic: Array of Strings
Previous-year question practice database
Answer
Exam answer
false JAI
Explanation
Line 1: arr[0] is "DELHI" with 5 characters; arr[3] is "LUCKNOW" with 7. The test asks whether 5 > 7, which is FALSE. Count the letters carefully — this is the whole question. Line 2: arr[4] is "JAIPUR", and substring(0, 3) takes indices 0, 1 and 2 — J, A, I — stopping just before index 3. The result is JAI. Note the two different uses of length here: arr.length would be 5 (the number of words), while arr[0].length() is 5 (the characters in DELHI) — same number, entirely different meaning.
More from Arrays
An array with 3 elements is arranged in ascending order as follows:
4 1 3 -> 1 4 3 -> 1 3 4
Name the technique used:2026The sales made by 5 salesmen selling 5 products is stored in a two-dimensional array of integer data type. How many bytes does the array occupy?2026int X[][] = {{4, 5}, {7, 2}, {19, 4}, {7, 4}};
Write the index of the maximum element and the index of the minimum element of the array.2026The following program segment swaps the first element and the second element of the given array without using the third variable. Fill in the blanks with appropriate java statements:
void swap()
{
int x[] = {4, 8, 19, 24, 15};
(1) __________;
(2) __________;
x[0] = x[0] / x[1];
System.out.println(x[0] + " " + x[1]);
}2026Write a program to accept the designations of 100 employees in a single dimensional array. Accept the designation from the user and print the total number of employees with the designation given by the user as input.
Example:
Trainee | Manager | Chef | Manager | Director | Manager
Input: Manager Output: 32026Write a program to accept a two-dimensional integer array of order 4 x 5 as input from the user. Check if it is a Sparse Matrix or not. A matrix is considered to be sparse if the total number of zero elements is greater than the total number of non-zero elements. Print appropriate messages.
Example:
4 3 0 1 0
1 0 0 2 0
1 0 1 0 0
0 3 2 0 0
Number of zero elements = 11
Number of non zero elements = 9
Matrix is a Sparse Matrix2026