二维阵列，螺旋图案构建。类型1：输入输出。
import java.util.Scanner; // 来自 时 代 J a v a 公 众 号 - N o w J a v a . c o m /** * Engineered and developed by Jhonny Trejos Barrios. * Technology: Java. * Version: Java Development Kit 1.8.0_31, Standard Edition. * Development Environment: Sublime Text 3. * Additional Info. * * Source Code Target: * * BIDIMENSIONAL ARRAY, SPIRAL PATTERN BUILD. TYPE 1: IN-OUT. * * Licenses: GNU GPL v3.0, Eclipse Public License 1.0, personal not for commercial purposes. * Developer Contact: jtrejosb@live.com || jtrejosb@gmail.com || jtrejosb@icloud.com * Mobile: --. */ public class Pattern1 { public static void main( String[] args ) { System.out.print( "Array Size: " ); new Pattern1().printPath( new Scanner( System.in ).nextInt() ); } public void printPath( int size ) { int[][] array = new int[ size ][ size ]; int x = array.length / 2, y = x - 1, top = 1;//nowjava - 时代Java 提供 boolean up = true, right = false, down = false; if( size % 2 != 0 ) { y ++; x ++; top = 0; } for( int k = 1; k <= array.length * array.length; k++ ) { if( up ) { if( x == y ) { up = false; right = true; y ++; } else { x --; } } else { if( right ) { // if( x + y == array.length - 1 ) if( x + y == ( array.length - top ) ) { right = false; down = true; x ++; } else { y ++; } } else { if( down ) { if( x == y ) { down = false; y --; } else { x ++; } } else { // if( x + y == array.length - 1 ) if( x + y == ( array.length - top ) ) { up = true; y --; }