java,for-loop , Understanding the for loop in java


Understanding the for loop in java

Question:

Tag: java,for-loop

I'm new to java as you can see. I can't seem to understand why these two codes have different output. Please explain it to me. What is the difference of y<=x; and y<=5;. As you can see the x is = 5 too, I don't get why I get different output.

for(int x=0; x<5; x++){
            for(int y=1; y<=x; y++){
                System.out.print("x");
            }

            for (int g=4; g>=x; g--){
                System.out.print("*");
            }                       
            System.out.println();
        }

output:


x****

xx***

xxx**

xxxx*

for(int x=0; x<5; x++){
            for(int y=1; y<=5; y++){
                System.out.print("x");
            }

            for (int g=4; g>=x; g--){
                System.out.print("*");
            }                       
            System.out.println();
        }

output:

xxxxx*****

xxxxx****

xxxxx***

xxxxx**

xxxxx*


Answer:

Basically the main difference is this line:

for(int y=1; y<=x; y++)

resp.

for(int y=1; y<=5; y++)

The number of times the loop is executed is different. Namely in the first case it is variable (so the number of 'x' increases), in the second case it is fixed (5 'x' printed each time).

(edit: typo)


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