Computer Applications
The java statement System.out.println(x[x.length]) results in:
- logical error
- syntax error
- run time error
- no error
Answer
run time error
Reason — In Java, arrays are zero-indexed, meaning the valid indices range from 0 to x.length - 1. x.length gives the total number of elements in the array, but accessing x[x.length] tries to access an index outside the valid range, resulting in a ArrayIndexOutOfBoundsException at runtime.
Related Questions
The String method, which results only in a positive integer, is :
- indexOf
- lastIndexOf
- compareTo
- length
The method to convert a String to double is:
- String.toDouble()
- Double.Parsedouble()
- Double.parseDouble(String)
- Double.parseDouble()
Which of the following is a valid array declaration statement to store the Gender of 80 employees [ 'M'-male, 'F'-female, 'T'-transgender ]?
- char gender = new char[80];
- char gender[] = new char[80];
- char gender[80];
- char gender[80] = new char[ ];
Arrange the following java statements in the correct order of execution to accept values into the array a[]:
(i) a[i]=sc.nextInt( );
(ii) int a[]=new int[10];
(iii) Scanner sc=new Scanner(System.in);
(iv) for(i=0;i<10;i++)- (i), (ii), (iii), (iv)
- (ii), (iii), (iv), (i)
- (iv), (iii), (ii), (i)
- (iii), (i), (iv), (ii)