susun, Java - rextester

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//'main' method must be in a class 'Rextester'.
//openjdk version '11.0.5'

import java.util.*;
import java.lang.*;

class Rextester
{  
    public static void main(String args[])
    {
        //Scanner sc = new Scanner(System.in);
        //System.out.print("Masukkan nilai tingkat pertama : ");
        //int tingkat = sc.nextInt();
        System.out.println("Input tingkat : 5");
        printSusun(5);
        System.out.println("---------------------");
        System.out.println("Input tingkat : 7");
        printSusun(7);
    }
    public static void printSusun(int tingkat){
        for(int i=tingkat; i>=(tingkat/2)+1; i--){
            int space =0;
            for(int j=tingkat; j>i;j--){
                System.out.print(" ");
                space++;
            }
            for(int a=i; a>(i/2)+1; a--){
                System.out.print(a);
            }
            for(int b=(i/2)+1; b>=space+1; b--){
                System.out.print(b);
            }
            System.out.println();
        }
        for(int i=(tingkat/2); i>=1; i--){
            int space = 0;
            for(int j=i; j>1;j--){
                System.out.print(" ");
                space++;
            }for(int a = i; a<(tingkat/2)+1; a++){
                System.out.print(a);
            }for(int b = (tingkat/2)+1; b<=tingkat-space; b++){
                System.out.print(b);
            }
            System.out.println();
        }
    }
}

[ + ] Show input
Compilation time: 1.96 sec, absolute running time: 0.3 sec, cpu time: 0.22 sec, memory peak: 24 Mb, absolute service time: 2,33 sec