Multiplication table generation using Java (natural numbers up to 20)

Hi ALL,

I wrote a program for Multiplication table generation using java looping concept (natural numbers up to 20).

public class tables{ 

public static void main(String args[])
 {    
   
    for(int i = 1; i <=20; i++) {
        System.out.println("\n\n"+i +" table\n");
        for(int j = 1; j <= 20; j++) {
            System.out.println(j+" *"+i+" ="+(i*j));
        }               
    }
    
 }

}

OUTPUT:

1 table

1 *1 =1
2 *1 =2
3 *1 =3
4 *1 =4
5 *1 =5
6 *1 =6
7 *1 =7
8 *1 =8
9 *1 =9
10 *1 =10
11 *1 =11
12 *1 =12
13 *1 =13
14 *1 =14
15 *1 =15
16 *1 =16
17 *1 =17
18 *1 =18
19 *1 =19
20 *1 =20


2 table

1 *2 =2
2 *2 =4
3 *2 =6
4 *2 =8
5 *2 =10
6 *2 =12
7 *2 =14
8 *2 =16
9 *2 =18
10 *2 =20
11 *2 =22
12 *2 =24
13 *2 =26
14 *2 =28
15 *2 =30
16 *2 =32
17 *2 =34
18 *2 =36
19 *2 =38
20 *2 =40


3 table

1 *3 =3
2 *3 =6
3 *3 =9
4 *3 =12
5 *3 =15
6 *3 =18
7 *3 =21
8 *3 =24
9 *3 =27
10 *3 =30
11 *3 =33
12 *3 =36
13 *3 =39
14 *3 =42
15 *3 =45
16 *3 =48
17 *3 =51
18 *3 =54
19 *3 =57
20 *3 =60


4 table

1 *4 =4
2 *4 =8
3 *4 =12
4 *4 =16
5 *4 =20
6 *4 =24
7 *4 =28
8 *4 =32
9 *4 =36
10 *4 =40
11 *4 =44
12 *4 =48
13 *4 =52
14 *4 =56
15 *4 =60
16 *4 =64
17 *4 =68
18 *4 =72
19 *4 =76
20 *4 =80


5 table

1 *5 =5
2 *5 =10
3 *5 =15
4 *5 =20
5 *5 =25
6 *5 =30
7 *5 =35
8 *5 =40
9 *5 =45
10 *5 =50
11 *5 =55
12 *5 =60
13 *5 =65
14 *5 =70
15 *5 =75
16 *5 =80
17 *5 =85
18 *5 =90
19 *5 =95
20 *5 =100

etc upto 20th table