Java implements operations such as matrix addition, subtraction, multiplication, division, and transformation.

Java implements operations such as matrix addition, subtraction, multiplication, division, and transformation.

This example describes how to implement operations such as matrix addition, subtraction, multiplication, division, and conversion in Java. We will share this with you for your reference. The details are as follows:

For beginners in Java, compile a matrix budget program and use it as a tool for later algorithm writing.

Public class MatrixOperation {public static int [] [] add (int [] [] matrix_a, int [] [] matrix_ B) {int row = matrix_a.length; int col = matrix_a [0]. length; int [] [] result = new int [row] [col]; if (row! = Matrix_ B .length | col! = Matrix_ B [0]. length) {System. out. println ("Fault") ;}else {for (int I = 0; I <row; I ++) {for (int j = 0; j <col; j ++) {result [I] [j] = matrix_a [I] [j] + matrix_ B [I] [j] ;}} return result ;} public static int [] [] sub (int [] [] matrix_a, int [] [] matrix_ B) {int row = matrix_a.length; int col = matrix_a [0]. length; int [] [] result = new int [row] [col]; if (row! = Matrix_ B .length | col! = Matrix_ B [0]. length) {System. out. println ("Fault") ;}else {for (int I = 0; I <row; I ++) {for (int j = 0; j <col; j ++) {result [I] [j] = matrix_a [I] [j]-matrix_ B [I] [j] ;}} return result ;} public static int [] [] dot (int [] [] matrix_a, int [] [] matrix_ B) {/** matrix_a's dimention m * p matrix_ B's dimention p * n. return dimention * m * n */int row = matrix_a.length; int col = matrix_a [0]. length; I Nt [] [] result = new int [row] [col]; if (col! = Matrix_ B .length) {System. out. println ("Fault") ;}else {for (int I = 0; I <row; I ++) {for (int j = 0; j <col; j ++) {result [I] [j] = 0; for (int k = 0; k <col; k ++) {result [I] [j] + = matrix_a [I] [k] * matrix_ B [k] [j] ;}}} return result ;} public static int [] [] dot (int [] [] matrix_a, int B) {int row = matrix_a.length; int col = matrix_a [0]. length; int [] [] result = new int [row] [col]; for (int I = 0; I <row; I ++) {for (int j = 0; j <col; j ++) {result [I] [j] = matrix_a [I] [j] * B;} return result ;} public static int [] [] mul (int [] [] matrix_a, int [] [] matrix_ B) {/** matrix_a's dimention m * n matrix_ B's dimention m * n. return dimention * m * n */int row = matrix_a.length; int col = matrix_a [0]. length; int [] [] result = new int [row] [col]; if (row! = Matrix_ B .length | col! = Matrix_ B [0]. length) {System. out. println ("Fault") ;}else {for (int I = 0; I <row; I ++) {for (int j = 0; j <col; j ++) {result [I] [j] = matrix_a [I] [j] * matrix_ B [I] [j] ;}} return result ;} public static int [] [] transport (int [] [] matrix_a) {int row = matrix_a.length; int col = matrix_a [0]. length; int [] [] result = new int [row] [col]; for (int I = 0; I <row; I ++) {for (int j = 0; j <col; j + +) {Result [j] [I] = matrix_a [I] [j] ;}} return result;} public static void print (int [] [] matrix) {int row = matrix. length; int col = matrix [0]. length; for (int I = 0; I <row; I ++) {System. out. print ("["); for (int j = 0; j <col; j ++) {System. out. print (matrix [I] [j]); if (j! = Col-1) {System. out. print (",") ;}} System. out. print ("] \ n") ;}} public static void main (String [] args) {int [] [] a ={{ 1, 2 },{ 3, 4 }}; int [] [] B = {7, 8}, {6, 5 }}; int [] [] c = add (a, B ); system. out. println ("the result of the help house test is as follows:"); System. out. println ("matrix a ="); print (a); System. out. println ("matrix B ="); print (B); System. out. println ("matrix a + B ="); print (c); c = sub (a, B); System. out. println ("matrix a-B ="); print (c); int [] [] d = dot (a, B); System. out. println ("matrix a dot B ="); print (d); int [] [] e = dot (a, 3); System. out. println ("matrix a * 3 ="); print (e); int [] [] f = transport (a); System. out. println ("matrix. T = "); print (f); int [] [] g = mul (a, B); System. out. println ("matrix a * B ="); print (g );}}

Running result: