作爲矩陣打印自定義2d陣列

Question

鑑於我目前的代碼，我怎樣才能以矩陣格式輸出它？我目前的輸出方法只是直線列出數組。不過，我需要將它們堆疊在相應的輸入參數中，以便3x3輸入生成3x3輸出。謝謝！

import java.util.Scanner; 

Answer 1

for (int i =0; i < rows; i++) { 
    for (int j = 0; j < columns ; j++) { 
     System.out.print(" " + array2d[i][j]); 
    } 
    System.out.println(""); 
} 

Answer 2

for(int row = 0; row < rows; row++){ 
    for(int column = 0; column < columns; column++){ 
     System.out.print(array2d[row][column] + " "); 
    } 
    System.out.println(); 
} 

這將打印出一行一行的，然後移動到下一行，並打印出它的內容，等等，您所提供和作品的代碼進行測試。

編輯 - 增加了代碼，你想要的方式：

public static void main(String[] args) { 

    Scanner scan =new Scanner(System.in); //creates scanner object 

    System.out.println("How many rows to fill?"); //prompts user how many numbers they want to store in array 
    int rows = scan.nextInt(); //takes input for response 

    System.out.println("How many columns to fill?"); 
    int columns = scan.nextInt(); 
    int[][] array2d=new int[rows][columns]; //array for the elements 

    for(int row=0;row<rows;row++) 
     for (int column=0; column < columns; column++) 
     { 
     System.out.println("Enter Element #" + row + column + ": "); //Stops at each element for next input 
     array2d[row][column]=scan.nextInt(); //Takes in current input 
     } 

    System.out.println(Arrays.deepToString(array2d)); 

    String[][] split = new String[1][rows]; 

    split[0] = (Arrays.deepToString(array2d)).split(Pattern.quote("], [")); //split at the comma 

    for(int row = 0; row < rows; row++){ 
     System.out.println(split[0][row]); 
    } 

    scan.close(); 
}