21) Given an
array int a[]. Add the sum at even indexes.do the same with odd indexes.
if both the sum is equal return 1 or
return -1.
package Set2;
public class
ClassSET21 {
public static
void main(String[] args) {
int a[]={9,8,5,3,2,6,4,7,5,1};
System.out.println(oddEvenIndicesCount(a));
}
public static int
oddEvenIndicesCount(int[] a) {
int n1=0,n2=0,n3=0;
for(int i=0;i<a.length;i++)
if(i%2==0)
n1+=a[i];
else
n2+=a[i];
if(n1==n2)
n3=1;
else
n3=-1;
return n3;
}
}