Java Fundamentals Hardening 07: Print out Hollow diamonds

1. Print out the Hollow Diamond :

2. The following is the logic implementation code:

1  Packagehimi.hebao04;2 3 ImportJava.util.Scanner;4 5  Public classTestDemo08 {6      Public Static voidMain (string[] args) {7         intlength = 1;//variable that stores the side length of a diamond8Scanner sc =NewScanner (system.in);//Scan object for input data9System.out.println ("Please enter the side length of the Diamond:");TenLength = Sc.nextint ();//gets the value of the edge length of the input One         /*print the top half of a diamond with a length line of triangles*/ A          for(inti = 1; I <= length; i++) {//number of lines to print -              for(intj = 1; J <= Length-i; J + +) {//print the left blank area, with the accompanying decrement 1 -System.out.print (""); the             } -              for(intK = 1; K <= 2 * i-1; k++) {//the area of the Triangle -                 if(k = = 1 | | k = = 2 * i-1) {//Hollow Fetch except for the first and last outer lines of each row are blank, the starting position is no longer 1 rows and 1 columns, because the front space prints the placeholder -System.out.print ("*"); +}Else { -System.out.print (""); +                 } A             } at System.out.println (); -         } -         /*print the lower half of a diamond triangle the middle row is common so the number of rows is Length-1*/ -          for(inti = length-1; i > 0; i--) { -              for(intj = 1; J <= Length-i; J + +) { -System.out.print (""); in             } -              for(intK = 1; K <= 2 * i-1; k++) { to                 if(k = = 1 | | k = = 2 * i-1) { +System.out.print ("*"); -}Else { theSystem.out.print (""); *                 } $             }Panax Notoginseng System.out.println (); -         } the     } +  A}

Java Fundamentals Hardening 07: Print out Hollow diamonds