hii i have two queries...
1. The cd i got with K&B has learnkey 3 exam 2 mock exam and 1 master exam
pls tell me what the average score one must score to have good confidence in them..............when people say i.e above 90% are they talking of all the average of 3 or only master exam ?
2 in one of the question of mock exam
public class Test{
public static void main(
String args[])
long [] [] a1;
long [] a2[];
a2=new long[3][];
a1=a2;
System.out.println(a1[1][0]);
}}
the answer is compiler errror ? why ?
i think it should be runtime error... i.e NullPointerException error ?
pls confirm