004-008-004

Creating Multidimensional Arrays: 2D Arrays

Medium

Problem Description

Creating Multidimensional Arrays: 2D Arrays

Learning Objective: Understand how to declare and initialize 2D arrays

Overview

Create a program that creates a 3x2 two-dimensional array, sets values, and outputs them.

Specifications

Create a 3x2 int 2D array
Assign values: {{1, 2}, {3, 4}, {5, 6}}
Output all elements row by row

Output Format

Row 0: 1, 2
Row 1: 3, 4
Row 2: 5, 6

Test Cases

※ Output examples follow programming industry standards

Input:

Expected Output:

Row 0: 1, 2
Row 1: 3, 4
Row 2: 5, 6

❌ Some tests failed

❌ エラー発生

Your Solution

Current Mode:● My Code

public class Main {
  // メインメソッドを定義
  public static void main(String[] args) {
  // と initialize 2D 配列を作成
  int[][] matrix = {
  {1, 2},
  {3, 4},
  {5, 6}
  };
  // 各行を出力
  for (int i = 0; i < matrix.length; i++) {
  System.out.print("Row " + i + ": ");
  for (int j = 0; j < matrix[i].length; j++) {
  // if j は 大きい より 0をチェック
  if (j > 0) {
  System.out.print(", ");
  }
  System.out.print(matrix[i][j]);
  }
  System.out.println();
  }
  }
}

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