[IMAGE: https://steemitimages.com/DQmRUa2Zkg8nj269h38CtfKUKi2BtnN6KX4zAZvXazHvYgK/pertama.png]
An array in Java can be formed by defining a two-dimensional array. Then we can fill each element manually by accessing each element. Here is an example:
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In this tutorial, we will only discuss basic matrix operations such as addition, subtraction, and multiplication.

Accessing Matrix Elements

We can use nested loop for to access an element at a certain coordinate. For example let's look at the following source code:[IMAGE: https://steemitimages.com/DQmPSipy6ABGQ11kL5y1MJscP9zGo2hepkATw6Uoch9iovf/ketiga.png]
Here is the output of the source code:
[IMAGE: https://steemitimages.com/DQmVCxti4UDhGER6aKfMcD2uG33AHgyZaNUtWA6zJSwCCgE/ke%20empat.png]

Reducing Two Matrices

To perform the matrix reduction, each element of the two matrices we subtract then the result into a new element of a matrix. The following example is the source code in Java:[IMAGE: https://steemitimages.com/DQmWmRbADYw9fg8TZVgEZdAFm98GX1B3eGHzT5FK1dBJCQt/ke%20lima.png]If the source code we run, then the output will appear as follows:[IMAGE: https://steemitimages.com/DQmVQMGsJH6vKLVwxYvABJaymyuhtN6hwmPrFTrbXosDYiH/terakhir.png]

source of :
https://www.codepolitan.com/tutorial/mengenal-matriks-dan-operasinya-di-java

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