Anyone could explain the Code.....

[seongchog]

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Not really understand the code anyone could explain for me ....
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int i, j;
        int a = 0, b = 4;
 
        for (i = 9; i > 0; i-=2) {
 
            System.out.println();
 
            for (j = 0; j<a; j++){
                System.out.print(" ");
            }
 
            for (j = 0; j < i; j++){
                System.out.print("*");
            }
           
            a++;
        }
 
        for (i = 0; i < 9; i+=2) {
 
            for (j = 0; j < b; j++){
                System.out.print(" ");
            }
            if(i!=0){
                for (j = 0; j <= i; j++){
                    System.out.print("*");
                }
            }
 
            System.out.println();
            b--;

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[KevinWorkman]

What don't you understand about it? Have you stepped through it with a debugger? Have you stepped through it with a piece of paper and a pencil?

[seongchog]

int i, j;   <------declare i &j
int a = 0, b = 4;<-------declare a=0 b=4

for (i = 9; i > 0; i-=2) { < ------ i got 9 rol, i more 0 ,i -=2 

System.out.println();       
for (j = 0; j<a; j++){
System.out.print(" ");
}

for (j = 0; j < i; j++){
System.out.print("*");
}

a++;
}

for (i = 0; i < 9; i+=2) {

for (j = 0; j < b; j++){
System.out.print(" ");
}
if(i!=0){
for (j = 0; j <= i; j++){
System.out.print("*");
}
}

System.out.println();
b--;