Creating an array (matrix) that is using user inputs

[Luffy0114]

Alright, so I just start self-learning for computer science over Internet, and there is a question that I don't know how to do it. Please help by giving me a hint or something.

Question:
Create an array (matrix) by asking the users for a number of rows and columns. Then ask the users to input each value for the matrix. Keep all the numbers as Integer.

Solve:
So I start by asking the users a number of rows and columns (let's say 4x4), but then I don't know how to ask user to input each value for the matrix. Thank you

[chaarmann]

You just use a double for-loop. The inner iterates over the columns, the outer over the rows.
Inside your double loop, you read the user input in a variable, the same way you do it when you ask for number of rows.
Then you copy the variable into the array:

int rowCount = ... // read number of rows from user
int columnCount = ... // read number of columns from user
int[][] array = new int[rowCount][columnCount];
for(int row = 0; ...)
{
   for(int column = 0; ...)
   {
    ... // tell user which row/column to input
    int userInput = ... // read in value from user
    array[row][column] = userInput;
   }
}