For-each Loop in Java

Question

I have a sample code which creates an \"array\" of size 10 and tries to initialize it with reverse values in a For loop e.g:(9,8,7,6,5...0):

int[] array = ne         


        

Answer 1

This for loop, for (int k : array) is basically gives you the array value in detail this for loop is like -

int k = array[0] = 9 int k = array[1] = 8 .....

and again you are trying to print array[9] , array[8] which gives you result like 0,1,2... replace for( int k : array){ System.out.println(array[k]); }

with for(int k : array){ System.out.println(k); }

Answer 2

Basically, since (int k : array) causes k to go through the values in the array, not the indexes, what you've done is equivalent to

System.out.println(array[array[0]]);
System.out.println(array[array[1]]);
System.out.println(array[array[2]]);
System.out.println(array[array[3]]);
...
System.out.println(array[array[9]]);

which isn't what you want.

Answer 3

You are already getting the values out of the array with your foreach loop, which you are using as an index again into the array, yielding the values in order again.

Just print k. Change

for (int k : array) {
    System.out.println(array[k]);
}

to

for (int k : array) {
    System.out.println(k);
}

End of the output:

9
8
7
6
5
4
3
2
1
0