CODEWITHSUNDEEP
java
user4569094
user4569094

Reputation:

Why does both the multiple method program have different results

I just wrote a program to increase the value of arrays by 1. But, when i used an enhanced for loop I could not add get the same result....... USING FOR LOOP

class array{
public static void main(String args[]){
    int rajath[]={11,22,33,44};
    change(rajath);
    for(int x:rajath){
        System.out.println(x);
    }
}

public static void change (int x[]){
    for(int i=0;i<x.length;i++){
        x[i]++;
    }
}
}

ENHANCED FOR LOOP

    class array{
    public static void main(String args[]){
        int rajath[]={11,22,33,44};
        change(rajath);
        for(int x:rajath){
            System.out.println(x);
        }
    }
    
    public static void change (int x[]){
        for(int i:x ){
            i++;
        }
    }
}

Upvotes: 2

Views: 52

Answers (2)

Saravana
Saravana

Reputation: 12817

In Enhanced for loop you're incrementing the block variable i
In For loop you're incrementing the element in the array

Upvotes: 1

Eran
Eran

Reputation: 394146

Your enhanced for loop is equivalent to :

for(int i=0;i<x.length;i++){
    int k = x[i];
    k++;
}

which is not the same as your regular for loop.

Your regular for loop increments the elements of the array, while your enhanced for loop increments copies of those elements.

Upvotes: 4

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