public class ArbolNavidad
{ public static void main(String args[])
{ int max=20;
int j=1,k=0;
// primer arbol
System.out.println();
for(int i=0;i<=max;i+=2)
{ int spc=(5+(int)Math.ceil(max/2)-j);
String spaces=new String(new char[spc]).replace("\0"," "); String asteri=new String(new char[i+1]).replace("\0","*"); System.out.println(spaces+asteri);
j++;
}
// tronco
if(max>=7)
{ int spc=(5+(int)Math.ceil(max/2)-2);
String spaces=new String(new char[spc]).replace("\0"," "); String asteri=new String(new char[3]).replace("\0","*"); System.out.println(spaces+asteri);
System.out.println(spaces+asteri);
}
System.out.println();
// segundo Arbol
j=1;
for(int h=1;h<3;h++)
{ for(int i=k;i<=max;i+=2)
{ int spc=(5+(int)Math.ceil(max/2)-j);
String spaces=new String(new char[spc]).replace("\0"," "); String asteri=new String(new char[i+1]).replace("\0","*"); System.out.println(spaces+asteri);
j++;
}
k=5;
j=3;
}
// tronco
if(max>=7)
{ int spc=(5+(int)Math.ceil(max/2)-2);
String spaces=new String(new char[spc]).replace("\0"," "); String asteri=new String(new char[3]).replace("\0","*"); System.out.println(spaces+asteri);
System.out.println(spaces+asteri);
}
System.out.println();
}
}
Crear cuenta
Comentarios sobre la versión: Versión 1 (4)
o un JOptionPane
class arbol{
arbol(){
for(int i=0; i<10; i++){
for(int j=0; j<10-i; j++){
System.out.print(" ");
}
for(int k=0; k<2*i+1; k++){
System.out.print("*");
}
System.out.println("");
}
}
}