About the basic use with array in java.

i'm angry because i don't good at the basic java.So,I'm working hard on studying basic java now.First,i bought a book in the culture market yesterday.


In the following part of this passage,i will write something about Data-Structures.


1,About method LENGTH.

I believe many people think that LENGTH is a method.Oh,that's a shame.
In fact,LENGTH is not a method.You can use LENGTH directly.For example
,< Number.length>.


2,About method CLONE.

You needn't exchange compulsively in JDK5.0.Clone is not copy,the thing you cloned is diffent from the original one.They are independent.For example,Code 1.1. 

Code 1.1 :

package array;
class ex1{
public static void main(String[] args) {
int [] a,b;
a=new int[10];
a[5]=0;
b=a.clone();
a[5]=42;
System.out.println(b[5]);
}
}

solution is : 0




                                                              contact:[email protected]