GeezerVison is showing github.com — learnjava/Arrays.java at main · michaelkolesidis/learnjava

Expand file tree

Arrays.java

Copy path

More file actions

Latest commit

History

46 lines (33 loc) · 849 Bytes

Arrays.java

Copy path

File metadata and controls

46 lines (33 loc) · 849 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

// Find the maximum of the array values

double max = a[0];

for (int i = 1; i < a.length; i++)

if (a[i] > max) max = a[i];

// Compute the average of the array values

int N = a.length;

double sum = 0.0;

for (int i = 0; i < N; i++)

sum += a[i];

double average = sum / N;

// Copy to another array

int N = a.length;

double[] b = new double[N];

for (int i = 0; i < N; i++)

b[i] = a[i];

// Reverse the elements within an array

int N = a.length;

for (int i = 0; i < N/2; i++)

{

double temp = a[i];

a[i] = a[N-1-i];

a[N-i-1] = temp;

}

// Matrix-matrix multiplication (square matrices)

// a[][]*b[][] = c[][]

int N = a.length;

double[][] c = new double[N][N];

for (int i = 0; i < N; i++)

for (int j = 0; j < N; j++)

{ // Compute dot product of row i and column j.

for (int k = 0; k < N; k++)

c[i][j] += a[i][k]*b[k][j];

}