Java Pyramids and transformations

Java pyramids

Package Com.tfj.test;public class Jinzita {public static void main (string[] args) {int num=4;for (int i=0;i<num;i++) {//  Find out the space law for (int j=1;j<num-i;j++) System.out.print ("");//        Find out * rule for      (int k=0;k<2*i+1;k++) {    System.out.print ("*");      }    System.out.println ();}}}

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<strong><span style= "FONT-SIZE:18PX;" ></span></strong><pre name= "code" class= "java" ><span style= "font-size:18px;" >java Pyramid deformation 1:</span>

<pre name= "code" class= "Java" >package Com.tfj.test;public class JinZiTa2 {public static void main (string[] args) { int num=4;for (int i=0;i<num;i++) {for (int j=1;j<num-i;j++) System.out.print ("");//  Method 1: Special handling Pyramid inside hollow// for      (int k=0;k<2*i+1;k++) {//       if (i>0&&i<num-1&&k>0&&k<2*i) {//       System.out.print ("");//       }       else{//     System.out.print ("*");//      }//     }//Method 2: First and last layer is processed, then the middle num-2 layer for (int k=0;k<2*i+1; k++) {if (i==0| | i==num-1) {System.out.print ("*");} else{if (k==0| | K==2*i) {System.out.print ("*");} else{System.out.print ("");     }} System.out.println ();}}}

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<strong><span style= "FONT-SIZE:18PX;" >java Pyramid deformation 2:</span></strong>

<pre name= "code" class= "Java" >package Com.tfj.test;public class JinZiTa3 {public static void main (string[] args) { int num=4;for (int i=0;i<num;i++) {for (int j=1;j<num-i;j++) System.out.print ("");      for (int k=0;k<2*i+1;k++) {       if (i>0&&i<num&&k>0&&k<2*i) {       System.out.print ("");       }       else{     System.out.print ("*");      }     }     System.out.println ();} Invert the above and then handle the for (int i=num-1;i>0;i--) {for (int j=num-i;j>0;j--) System.out.print ("") slightly;      for (int k=2*i-1;k>0;k--) {       if (i>0&&i<num&&k>1&&k<2*i-1) {       System.out.print ("");       }       else{     System.out.print ("*");      }     }     System.out.println ();}}}

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Java Pyramids and transformations