Getting output of 0 each time when im ment to get 3 looked over my code my not sure where i have gone wrong i can do it without using a method i know but just trying to practice java
public class App {
public static int second(int a[],int n) {
int[] arr = new int [n];
int temp;
for(int i=0;i<n;i++) {
for(int j=i+1;j<n;j++) {
if(arr[i] > arr[j]) {
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
}
return arr[n-2];
}
public static void main(String[] args) {
int[] arr = {1,3,2,5,3};
int n = 5;
int result = second(arr,n);
System.out.println(result);
}
}
You could change the array parameter name arr and remove the declaration or copy the values from a to arr.
public static int second(int arr[],int n) {
int temp;
for(int i=0;i<n;i++) {
for(int j=i+1;j<n;j++) {
if(arr[i] > arr[j]) {
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
}
return arr[n-2];
}
The reason you get zero is because the primitive int cannot be null. So, when you create the array of length 5, it starts out filled with zeroes.