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local varaible doubt

pras
Ranch Hand

Joined: Apr 04, 2007
Posts: 188
for(int i=0;i<4;i++)
for(int j=0;j<5;j++){
twod[i][j]=k;
k++;
}
for(int i=0;i<4;i++)
for(int j=0;j<5;j++){
System.out.print(twod[i][j] + " ");

}
/*******doubt******************/
1> It is said that in java we cant declare local variable with same name in same or enclosing scope.
2> But the above code works fine even though INT i and INT j are declared twice?
marc weber
Sheriff

Joined: Aug 31, 2004
Posts: 11343

With a little reformatting for clarity, isn't this what you have?


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fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11256
    
  16

they are not in the same scope. each version of i and j fall out of scope when the for-loop where it is defined ends.


There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
 
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subject: local varaible doubt