How do I turn this while loop into a for loop?-CodePudding

Having trouble with for loops on java. How do I turn this while loop into a for loop?

public static void main(String[] args) {
            int down;
            down = 5;
            while (down > 0) {
                    System.out.println(down);
                    down = down - 1;

I want to just countdown from 5 (5 4 3 2 1)

for (down = 5; down > 0 down-- );

This just outputs:

CodePudding user response：

You are reducing down variable twice or more. You should remove down = down -1 line if you want to use for loop.

public static void main(String[] args) {
    int down;
    down = 5;
    for (down=5;down>0;down--) {
       System.out.println(down);
    }
}

CodePudding user response：

You should revisit the Core Java concepts. That's not how we use for-loops. You need to specify the start of the loop, u need to specify the condition until when you want to stay inside the loop, and then iteration logic .. i.e forward or backward.

See below :

Code :

public static void main(String[] args) {
    
    int down = 0;
    for (down = 5; down > 0 ; down-- ){
        System.out.println(down);
    }
        
}

Output :

5 4 3 2 1