Unit 8 Intro Unit 8 Declare/Initialize Unit 8 Traversing Unit 8 Accessing and Updating Unit 8 Algorithms

Accessing and updating the values of a 2D array

In Java, accessing and updating values in a 2D array is done using the row and column indices. The general format is:

- **Accessing a value**: array[row][column]
- **Updating a value**: array[row][column] = newValue;

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Popcorn Hack 1 (Part 2)

  • Update the values of the array, you made in part 1 to the group members in another group
String[][] people1 = {
    {"Jonathan","Tarun"},
    {"Srijan","Ian"}
};

people1[0][0] = "First Guy";
people1[0][1] = "Another dude";
people1[1][0] = "Another person";
people1[1][1] = "Another person again";

for(int i = 0; i < people1.length; i++) {
            for (int j = 0; j < people1[i].length; j++) {
                System.out.print(people1[i][j] + " ");
            }
            System.out.println();
        }

First Guy Another dude 
Another person Another person again