Question

 What correction is required for following Java code snippet to compile?

int [ ] X = new int [10];

for (int P = 0; P <= X.length (); P++)

X [P] = 5;  

1. P <= X.length() should be ​P < X.length() 
2. P++ should be P + 1 
3. X.length() should be X.length 
4. X[P] = 5 should be X(P) = 5  

Answer 1

Correct Answer - Option 3 : X.length() should be X.length 

In java, for an integer variable X to find the length of the array we should use X.length instead of x.length().

Corect code:

int [] X = new int [10];       // x is an integer array

for (int P = 0; P < X.length; P++)      // so, X.length should be used and P < X.length

X [P] = 5; 

Important Point:

String X;

X.length() is used for String data type