how to get first row and last column in nested loop

Question

Scanner scanner = new Scanner(System.in);
        System.out.print("Masukkan nilai : ");
        int input = scanner.nextInt();
        int kolom = input -1;
            for(int i=1;i<input;i++){
                for(int j=input;j>i;j--){
                    System.out.print("*");
                }
                System.out.println();
            }

output of code is :

but i want the output like :

so i think i need get the first row and last column

how to do that

Adding some if statements will do the trick.

Henry
– Henry

2018-09-22 04:29:49 +00:00
Commented Sep 22, 2018 at 4:29 — Henry
– Henry, Commented Sep 22, 2018 at 4:29

Roshana Pitigala · Accepted Answer · 2018-09-22 04:57:23Z

3

Please try this

Scanner scanner = new Scanner(System.in);
System.out.print("Masukkan nilai : ");
int index = scanner.nextInt();

for (int i = 0; i < index; i++) {
    System.out.print("*");
}
System.out.println();

for (int i = 1; i < index; i++) {
    for (int j = index; j > i; j--) {
        if (j == index || j == i + 1) {
            System.out.print("*");
        } else {
            System.out.print(" ");
        }
    }
    System.out.println();
}

edited Sep 22, 2018 at 4:57

Roshana Pitigala

8,8569 gold badges53 silver badges87 bronze badges

answered Sep 22, 2018 at 4:46

Midhun G S

9959 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

RaffleBuffle · Accepted Answer · 2018-09-22 06:00:33Z

0

for(char c='*',i=0; i<input; c=' ',i++)
  for(int j=0; j<input-i; j++)
    System.out.print(j==0 ? "*" : j<input-i-1 ? c : "*\n");

answered Sep 22, 2018 at 6:00

RaffleBuffle

5,4651 gold badge11 silver badges17 bronze badges

Collectives™ on Stack Overflow

how to get first row and last column in nested loop

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related