Pattern programs are nothing but patterns consisting of numbers, alphabets or symbols in a particular form.

Program:

package demo;

public class Rowandcolumn {

public static void main(String[] args) {
    // TODO Auto-generated method stub
    num();

    for(char r='A';r<='E';r++) {
        for(char c=r;c<='E';c++) {
            System.out.print(c+"  ");

        }
        System.out.println();

}
}

static void num() {
int S=1;
for(int r=1;r<=5;r++) {
for(int c=1;c<=6-r;c++) {
System.out.print(S+” “);
S++;

    }
    System.out.println();
}

}
}

Output:

1 2 3 4 5
6 7 8 9
10 11 12
13 14
15
A B C D E
B C D E
C D E
D E
E