通过在Java中循环创建乘法表

Question

I was tasked to make a multiplication table from 1-10 but I was not satisfied with my code, it seems to be long:

for (int i = 1; i <= 10; i++)
    {
        System.out.println("1x" + i + " =  " + i + "\t" + "2x" + i + " =  " + (2*i)
                + "\t" + "3x" + i + " =  " + (3*i) + "\t" + "4x" + i + " =  " + (4*i)
                + "\t" + "5x" + i + " =  " + (5*i) + "\t" + "6x" + i + " =  " + (6*i)
                + "\t" + "7x" + i + " =  " + (7*i) + "\t" + "8x" + i + " =  " + (8*i)
                + "\t" + "9x" + i + " =  " + (9*i) + "\t" + "10x" + i + " =  " + (10*i));
    }

Output:

1x1 = 1   2x1 = 2
1x2 = 2   2x2 = 4
etc.

Answer 1

Try something like

for (int i = 1; i <= 10; i++) {
   for (int j = 1; j <= 10; j++) {
      System.out.println(i + "x" + j + "=" (i*j));
   }
}

so you have an inner and an outer loop, controlling what you want multiplied and what you want it multiplied by .

To be more explicit you could (should?) rename i and j as multiplier and multiplicand

Answer 2

This will format the table how you have it in your example code, and uses two loops:

for (int i = 1; i <= 10; i++) {
        for (int j = 1; j <= 10; j++) {
            System.out.print(i + "x" + j + "=" + (i * j) + "\t");
        }
        System.out.println();
    }

The outer loop controls the rows in the multiplication table and the inner loop controls the columns in the multiplication table. System.out.println() signifies moving into a new row of the table

Answer 3

You could use two loops:

for (int i = 1; i <= 10; i++)
{
    for (int j = i; j <= 10; j++)
    {
        System.out.println(i + "x" + j + "=" + (i*j));
    }
}

Answer 4

for (int i = 1; i <= 10; i++)
{
    for(int j=1; j<10; j++){
        System.out.println(j+"x"+i+"="+(j*i)+"\t");
    }
    System.out.println("\n");
}

Answer 5

import java.util.Scanner;


public class TableMultiplication {


public static void main(String[] args) {
    int table,count,total;
    //Reading user data from console
    Scanner sc = new Scanner(System.in);
    //reading  data for table 
    System.out.println("Enter Your Table:");
    table = sc.nextInt();
    //reading input for how much  want to count
    System.out.println("Enter Your Count to Table:");
    count = sc.nextInt();
     //iterate upto the user required to count and multiplay the table and store in the total and finally display
    for (int i = 1; i < count; i++) {

        total = table*i;
        System.out.println(table+"*"+i+"="+total);

    }//for








}//main
}//TableMultiplication 

Answer 6

import java.util.Scanner;

public class P11 {

public static void main(String[] args) {
    Scanner s1=new Scanner(System.in);
    System.out.println("Enter a value :");
    int n=s1.nextInt();
    for(int i=1;i<=10;i++)
    {
        for(int j=1;j<=10;j++)
        {
             System.out.println(i+"x"+j+ "="+(i*j)+"\t");   
        }
    }
}

}