Iterating over Multidimensional Arrays: Use for-each style for on a two-dimensional array : For Each Loop « Statement Control « Java Tutorial






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  2. Statement Control
  3. For Each Loop
public class MainClass {
  public static void main(String args[]) {
    int sum = 0;
    int nums[][] = new int[3][5];

    // give nums some values
    for (int i = 0; i < 3; i++)
      for (int j = 0; j < 5; j++)
        nums[i][j] = (i + 1) * (j + 1);

    // use for-each for to display and sum the values
    for (int x[] : nums) {
      for (int y : x) {
        System.out.println("Value is: " + y);
        sum += y;
      }
    }
    System.out.println("Summation: " + sum);
  }
}

Value is: 1
Value is: 2
Value is: 3
Value is: 4
Value is: 5
Value is: 2
Value is: 4
Value is: 6
Value is: 8
Value is: 10
Value is: 3
Value is: 6
Value is: 9
Value is: 12
Value is: 15
Summation: 90




4.7.For Each Loop
4.7.1.The For-Each Version of the for Loop
4.7.2.The for-each loop is essentially read-only
4.7.3.The for each loop for an enum data type
4.7.4.Using the For-Each Loop with Collections: ArrayList
4.7.5.Use a for-each style for loop
4.7.6.Using 'for each' to loop through array
4.7.7.Iterating over Multidimensional Arrays: Use for-each style for on a two-dimensional array
4.7.8.Using break with a for-each-style for