Java打印带对角线数字的方块图案程序

编写一个Java程序，使用for循环打印一个方块图案，其中对角线上的数字除外，其余均为零。

package Shapes3;

import java.util.Scanner;

public class SqaurewithDiagNum1 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Square with Diagonal Numbers Side = ");
		int rows = sc.nextInt();
		
		System.out.println("Square with Numbers in Diaginal and Remaining 0's");
		
		for (int i = 1; i <= rows; i++ ) 
		{
			for (int j = 1; j < i; j++ ) 
			{
				System.out.print("0 ");
			}
			System.out.print(i + " ");
			
			for(int k = i; k < rows; k++) 
			{
				System.out.print("0 ");
			}
			System.out.println();
		}
	}
}

这是在Java中用另一种方式打印具有对角线数字且其余项均为零的方块图案。

package Shapes3;

import java.util.Scanner;

public class SqaurewithDiagNum2 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Square with Diagonal Numbers Side = ");
		int rows = sc.nextInt();
		
		System.out.println("Square with Numbers in Diaginal and Remaining 0's");
		
		for (int i = 1; i <= rows; i++ ) 
		{
			for (int j = 1; j <= rows; j++ ) 
			{
				if(i == j)
				{
					System.out.print(i + " ");
				}
				else
				{
					System.out.print("0 ");
				}			
			}
			System.out.println();
		}
	}
}

Enter Square with Diagonal Numbers Side = 9
Square with Numbers in Diaginal and Remaining 0's
1 0 0 0 0 0 0 0 0 
0 2 0 0 0 0 0 0 0 
0 0 3 0 0 0 0 0 0 
0 0 0 4 0 0 0 0 0 
0 0 0 0 5 0 0 0 0 
0 0 0 0 0 6 0 0 0 
0 0 0 0 0 0 7 0 0 
0 0 0 0 0 0 0 8 0 
0 0 0 0 0 0 0 0 9 

Java使用while循环打印带对角线数字的方块图案的程序

package Shapes3;

import java.util.Scanner;

public class SqaurewithDiagNum3 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Square with Diagonal Numbers Side = ");
		int rows = sc.nextInt();
		
		System.out.println("Square with Numbers in Diaginal and Remaining 0's");
		int i = 1;
		
		while( i <= rows) 
		{
			int j = 1; 
			
			while(j <= rows) 
			{
				if(i == j)
				{
					System.out.print(i + " ");
				}
				else
				{
					System.out.print("0 ");
				}	
				j++;
			}
			
			System.out.println();
			i++;
		}
	}
}

Enter Square with Diagonal Numbers Side = 12
Square with Numbers in Diaginal and Remaining 0's
1 0 0 0 0 0 0 0 0 0 0 0 
0 2 0 0 0 0 0 0 0 0 0 0 
0 0 3 0 0 0 0 0 0 0 0 0 
0 0 0 4 0 0 0 0 0 0 0 0 
0 0 0 0 5 0 0 0 0 0 0 0 
0 0 0 0 0 6 0 0 0 0 0 0 
0 0 0 0 0 0 7 0 0 0 0 0 
0 0 0 0 0 0 0 8 0 0 0 0 
0 0 0 0 0 0 0 0 9 0 0 0 
0 0 0 0 0 0 0 0 0 10 0 0 
0 0 0 0 0 0 0 0 0 0 11 0 
0 0 0 0 0 0 0 0 0 0 0 12 

这个Java程序使用do while循环显示递增对角线数字的方块图案，其余数字均为零。

package Shapes3;

import java.util.Scanner;

public class SqaurewithDiagNum4 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Enter Square with Diagonal Numbers Side = ");
		int rows = sc.nextInt();
		
		System.out.println("Square with Numbers in Diaginal and Remaining 0's");
		int i = 1;
		
		do
		{
			int j = 1; 
			
			do 
			{
				if(i == j)
				{
					System.out.print(i + " ");
				}
				else
				{
					System.out.print("0 ");
				}	

			} while(++j <= rows);
			
			System.out.println();

		} while(++i <= rows);
	}
}

Enter Square with Diagonal Numbers Side = 15
Square with Numbers in Diaginal and Remaining 0's
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 9 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 11 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 12 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 13 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 14 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 15