Java 打印交替矩形行中的 1 和 0

编写一个 Java 程序，使用 for 循环在交替的矩形行中打印 1 和 0。

import java.util.Scanner;

public class AlternativeRows1and01 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Numbers of Rows = ");
		int rows = sc.nextInt();
		
		System.out.print("Enter Numbers of Columns = ");
		int columns = sc.nextInt();
		
		System.out.println("Printing 1 and 0 Numbers in Alternative Rows");
		
		for (int i = 1 ; i <= rows; i++ ) 
		{
			for (int j = 1 ; j <= columns; j++ ) 	
			{
				if(i % 2 != 0) {
					System.out.printf("1");
				}
				else {
					System.out.printf("0");
				}
			}
			System.out.println();
		}
	}
}

这个Java程序使用 while 循环在交替的行中打印 1 和 0 的矩形。

import java.util.Scanner;

public class AlternativeRows1and02 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Numbers of Rows and Columns = ");
		int rows = sc.nextInt();
		int columns = sc.nextInt();
		
		System.out.println("Printing 1 and 0 Numbers in Alternative Rows");
		
		for (int i = 1 ; i <= rows; i++ ) 
		{
			for (int j = 1 ; j <= columns; j++ ) 	
			{
				System.out.printf("%d", i % 2);
			}
			System.out.println();
		}
	}
}

Enter Numbers of Rows and Columns = 9 14
Printing 1 and 0 Numbers in Alternative Rows
11111111111111
00000000000000
11111111111111
00000000000000
11111111111111
00000000000000
11111111111111
00000000000000
11111111111111

Java 程序使用 do while 循环在矩形的交替行中打印 1 和 0。

import java.util.Scanner;

public class AlternativeRows1and03 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Numbers of Rows and Columns = ");
		int rows = sc.nextInt();
		int columns = sc.nextInt();
		
		System.out.println("Printing 1 and 0 Numbers in Alternative Rows");
		
		int j, i = 1;
		
		while (i <= rows ) 
		{
			j = 1 ;
			while(j <= columns) 	
			{
				System.out.printf("%d", i % 2);
				j++ ;
			}
			System.out.println();
			i++;
		}
	}
}

Enter Numbers of Rows and Columns = 10 20
Printing 1 and 0 Numbers in Alternative Rows
11111111111111111111
00000000000000000000
11111111111111111111
00000000000000000000
11111111111111111111
00000000000000000000
11111111111111111111
00000000000000000000
11111111111111111111
00000000000000000000

这个 Java 示例在交替的行中打印 0 和 1 的矩形。

import java.util.Scanner;

public class AlternativeRows1and04 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter Numbers of Rows and Columns = ");
		int rows = sc.nextInt();
		int columns = sc.nextInt();
		
		System.out.println("Printing 0 and 1 Numbers in Alternative Rows");
		
		for (int i = 1 ; i <= rows; i++ ) 
		{
			for (int j = 1 ; j <= columns; j++ ) 	
			{
				if(i % 2 != 0) {
					System.out.printf("0");
				}
				else {
					System.out.printf("1");
				}
			}
			System.out.println();
		}
	}
}

Enter Numbers of Rows and Columns = 12 25
Printing 0 and 1 Numbers in Alternative Rows
0000000000000000000000000
1111111111111111111111111
0000000000000000000000000
1111111111111111111111111
0000000000000000000000000
1111111111111111111111111
0000000000000000000000000
1111111111111111111111111
0000000000000000000000000
1111111111111111111111111
0000000000000000000000000
1111111111111111111111111