1> Class ThreeDay {public static void display (int loop) {
INT width = loop * 2 - 1;
For (int i = 1; i <= loop; i ) {for (int J = 1; j <= (Width - (2 * i - 1)) / 2; J ) {system.out.print ("" );} For (int J = 1; j <= i; j ) {system.out.print (j);} for (int J = i - 1; j> 0; j -) {system.out. Print (j);} system.out.println (");}
} Public static void main (String [] args) {Display (10);}} 2> public class testsan {
Public Static Void Pyramid (int Currow, int maxRow) {if (currow == maxrow) return; int count = 0; int NUM = 0; do {if (count == 0) for (int i = 0; i IF (count <= currow) System.out.Print ( Num); else system.out.print (- num); count ;} while (count <2 * currow 1); system.out. Println (); Pyramid ( Currow, Maxrow); Public static void main (string [] args) {pyramid (0,5); } 3> Public class testfei { Public void pyramid (int Currow, int maxRow) {int count = 0; int Num = 0; do {if (count == 0) for (int i = 0; i IF (count <= currow) System.out.Print ( Num); else system.out.print (- num); count ;} while (count <2 * currow 1); system.out. PRINTLN (); Public static void main (string [] args) {testfei aa = new testfei (); for (int i = 0; i <5; i ) aa.pyramid (i, 5);}} 4> Public Class Shuzita { Public static void main (string [] args) {int Row = 10; for (int i = 1; i <= row; i ) {system.out.print (GetSpace (row-i)); system.out.print (GetLeftNumber (I)); System.out.Print (GETRIGHTNUMBER (i)); system.out.println ();}} private static string getspace (int number) {stringbuffer buffer = new stringbuffer (); for (int I = 1; i <= number; i ) {buffer.append ("");} return buffer.tostring ();} private static string getleftnumber (int number) {stringbuffer buffer = new stringbuffer (); for (int i = 1; i <= number; i ) {buffer.Append (i);} return buffer.tostring ();} private static string getrightnumber (int Number) {stringbuffer buffer = new stringbuffer (); for (int i = number 1; I> = 1; i -) {buffer.append (i);} return buffer.tostring ();}}
