Arrays

Appeared in 10 of the 11 available papers.

Examined in

10 of 11 papers

Appears almost every year — treat as core

Typically worth

30.2 marks

Average per paper it appears in · 302 marks in total

Usual form

Program

54% of this chapter's 39 questions

Needs a diagram

10%

4 questions carry a figure — practise drawing them

Question-type distribution

Program21
MCQ8
Output5
Short answer3
Difference2

Most frequent topics

Memory occupied by a 2-D array 3Array of Strings 3Indices in a two-dimensional array 2Array length and elements 2Sorting techniques 1Swapping without a third variable 1Single dimensional String array — counting matches 1Two-dimensional array — Sparse Matrix 1

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Showing 14 of 39 matching questions (302 marks).

14 questions

ProgramHard10 marks

Define a class to declare an array of size twenty of double datatype, accept the elements into the array and perform the following: - Calculate and print the product of all the elements. - Print the square of each element of the array.

ProgramHard15 marks

Write a program to search for an integer value input by the user in the sorted list given below using binary search technique. If found display "Search Successful" and print the element, otherwise display "Search Unsuccessful". {31, 36, 45, 50, 60, 75, 86, 90}

ProgramHard15 marks

Write a program to input and store integer elements in a double dimensional array of size 3 x 3 and find the sum of elements in the left diagonal.

2(e)2019

DifferenceModerate2 marks

What is the difference between the linear search and the binary search technique?

3(i)2019

OutputModerate2 marks

String x[] = {"Artificial intelligence", "IOT", "Machine learning", "Big data"}; Give the output of the following statements: (i) System.out.println(x[3]); (ii) System.out.println(x.length);

ProgramHard15 marks

Write a program to input 15 integer elements in an array and sort them in ascending order using the bubble sort technique.

1(b)2018

DifferenceEasy2 marks

Differentiate between searching and sorting.

3(h)2018

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));

ProgramHard15 marks

Write a program to accept the name and total marks of N number of students in two single subscript arrays name[] and totalMarks[]. Calculate and print: (i) The average of the total marks obtained by N number of students. [average = (sum of total marks of all the students) / N] (ii) Deviation of each student’s total marks with the average. [deviation = total marks of a student - average]

1(e)2017

OutputModerate2 marks

String x[] = {"SAMSUNG", "NOKIA", "SONY", "MICROMAX", "BLACKBERRY"}; Give the output of the following statements: (i) System.out.println(x[1]); (ii) System.out.println(x[3].length());

ProgramHard15 marks

Write a program to input integer elements into an array of size 20 and perform the following operations: (i) Display the largest number from the array. (ii) Display the smallest number from the array. (iii) Display the sum of all the elements of the array.

ProgramHard15 marks

Write a program to input forty words in an array. Arrange these words in descending order of alphabets, using the selection sort technique. Print the sorted array.

1(e)2016

OutputModerate2 marks

If int x[] = {4, 3, 7, 8, 9, 10}; what are the values of p and q? (i) p = x.length (ii) q = x[2] + x[5] * x[1]

ProgramHard15 marks

Write a program to initialize the seven wonders of the world along with their locations in two different arrays. Search for the name of a country input by the user. If found, display the name of the country along with its wonder, otherwise display "Sorry not found!". Seven wonders: CHICHEN ITZA, CHRIST THE REDEEMER, TAJ MAHAL, GREAT WALL OF CHINA, MACHU PICCHU, PETRA, COLOSSEUM Locations: MEXICO, BRAZIL, INDIA, CHINA, PERU, JORDAN, ITALY Example: Country name: INDIA Output: INDIA - TAJ MAHAL Country name: USA Output: Sorry not found!