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ICSE Class 10 Arrays in Java (Single and Double Dimensional) — practice questions — page 2

Explore 96 free Arrays in Java (Single and Double Dimensional) questions in ICSE Class 10 Computer Applications. Open each question or exercise to read its content, reference answers and available explanation.

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Arrays in Java (Single and Double Dimensional) questions and exercises with answers

Showing questions 31–60 of 96.

In B + c*i + d*j for element (i,j), what is coefficient c?Read the answer and worked solution →What matrix type has an equal count of rows and columns?Read the answer and worked solution →What is an n-by-n square matrix formally called?Read the answer and worked solution →Which elements make up the main diagonal of a square matrix?Read the answer and worked solution →What matrix has all entries outside its main diagonal equal to zero?Read the answer and worked solution →When all entries below the main diagonal are zero, what is matrix A called?Read the answer and worked solution →In an identity matrix, what is the value of all main diagonal elements?Read the answer and worked solution →What value is obtained by summing the diagonal entries of a square matrix?Read the answer and worked solution →What operation transforms an m-by-n matrix by turning rows into columns?Read the answer and worked solution →When does a square matrix A qualify as a symmetric matrix?Read the answer and worked solution →What condition defines a skew-symmetric matrix?Read the answer and worked solution →In row-major order, how are elements of each row stored in memory?Read the answer and worked solution →In column-major order layout, which elements are stored consecutively?Read the answer and worked solution →What requirement must matrices meet to be added or subtracted?Read the answer and worked solution →Which property means the matrix sum does not depend on summand order?Read the answer and worked solution →How many total elements can an array declared as int a[2][3] store?Read the answer and worked solution →What is a matrix formed by removing selected rows or columns called?Read the answer and worked solution →Which language uses zero-based indexing for its array structures?Read the answer and worked solution →Match array traits: 1. Linear: p. 1D array 2. Index: q. Subscript 3. Contig: r. AdjacentRead the answer and worked solution →Match index bases: 1. Zero: p. Offset 0 2. One: q. Starts at 1 3. N-base: r. Any baseRead the answer and worked solution →Match search types: 1. Linear: p. Scan all 2. Binary: q. Halving 3. Hash: r. Key lookupRead the answer and worked solution →Match bubble roles: 1. Swap: p. Invert 2. Pass: q. Full cycle 3. Sink: r. Alt nameRead the answer and worked solution →Match address terms: 1. Base: p. First addr 2. Offset: q. Element 3. Stride: r. Step cRead the answer and worked solution →Match binary steps: 1. Mid: p. Pivot item 2. Lower: q. Left half 3. Upper: r. High halfRead the answer and worked solution →Match bubble terms: 1. Hare: p. Moves fast 2. Turtle: q. Crawls 3. Story: r. AesopRead the answer and worked solution →Match array actions: 1. Store: p. Write val 2. Select: q. Read val 3. Space: r. Linear OnRead the answer and worked solution →Match search spans: 1. Log: p. Binary time 2. Linear: q. Sequence 3. Const: r. IndexingRead the answer and worked solution →Match sort styles: 1. Dual: p. Both ways 2. Comb: q. Gap check 3. Bubble: r. AdjacentRead the answer and worked solution →Match array bounds: 1. Index: p. Position 2. Rank: q. Dimensions 3. Bounds: r. LimitsRead the answer and worked solution →Match search specs: 1. Sorted: p. Needed 2. Halve: q. Drop half 3. Empty: r. Not foundRead the answer and worked solution →

Worked practice questions

In B + c*i + d*j for element (i,j), what is coefficient c?

  1. Column index offset
  2. Base starting address
  3. Total element capacity
  4. Row address increment
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Correct answer: D. Row address increment

Coefficient c represents the row address increment in the addressing formula.

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What matrix type has an equal count of rows and columns?

  1. Empty matrix
  2. Scalar matrix
  3. Square matrix
  4. Linear matrix
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Correct answer: C. Square matrix

Equal numbers of rows and columns characterise a square matrix.

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What is an n-by-n square matrix formally called?

  1. Matrix of grade n
  2. Matrix of order n
  3. Matrix of class n
  4. Matrix of level n
Show answer and solution

Correct answer: B. Matrix of order n

An n-by-n square matrix is described as having order n.

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