Java Basics - 2D Arrays and Nested Loops

2D Arrays

 int dimensions[] [] where the first box is along the y axis and then the x axis.

In programming 'i' represents the column and 'j' represents the row

For example:

grid[i][j]
grid[column][row]
________________________________________

Nested Loops

 for(int i = 0; i<3; i++){    //this is the outer loop
    for(int j=0; j<3; j++){  //this is the inner loop
          System.out.println("What, where, who, when!");
     }
}

The above message repeats 3 times x 3 times. Giving the printing the line 9 times over.

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