java - Diamond Using For Loop -


i attempting have diamond print out based on user input using loops. i've gotten print out right side of diamond can't print out left side. i've tried reversing code no avail. i'm having trouble figuring out logic have code print out entire diamond. in advance!

the expected output if num=2 (without lines, of course):

 * *$*  * 

here's code far:

//print out diamond shape based on user input (int i=num; i>0; --i){     system.out.print("*");     (int n=i; n<num; ++n){         system.out.print("$*");     }//ending bracket of nested loop     system.out.println(); }//ending bracket of loop //print out diamond shape based on user input (int i=0; i<num; ++i){     system.out.print("*");     (int n=i; n<num; ++n){         system.out.print("$*");     }//ending bracket of nested loop     system.out.println(); }//ending bracket of loop 

you need add loop (one top half , 1 bottom half) in add enough spaces on each line in order center diamond:

for (int i=num; i>0; --i){     //insert spaces in order center diamond     (int n=0; n<i; ++n){         system.out.print(" ");     }     system.out.print("*");     (int n=i; n<num; ++n){         system.out.print("$*");     }//ending bracket of nested loop     system.out.println(); }//ending bracket of loop //print out diamond shape based on user input (int i=0; i<=num; ++i){   //<= print last asterisk     //insert spaces in order center diamond     (int n=0; n<i; ++n){         system.out.print(" ");     }     system.out.print("*");     (int n=i; n<num; ++n){         system.out.print("$*");     }//ending bracket of nested loop     system.out.println(); }//ending bracket of loop 

i'm not sure logic of correlation between num , shape of diamond in example. code prints desired diamond num = 1 not num = 2. in code num determines maximum width of diamond (the number of $ signs). num = 2 prints:

  *  *$* *$*$*  *$*   * 

if want

 * *$*  * 

for num=1 , on, can replace every occurence of num num-1 in code above. alternatively, add line

num--; 

before code , leave rest is.