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How to convert List to long[] or vise versa?

Thursday, January 12th, 2012

There is no automatic conversion from array of primitive type to array of their boxed reference types or vise versa. You have to iterate for each data.

Converting List<Long> to long[]

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List<Long> input = getSomeLongs(); // Assume some values
long[] output = new long[input.size()];
int index = 0;
for(Long val : input) {
	indexess[index] =  val;
	index++;
}

Converting long[] to List<Long>

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long[] input = getSomeLongs(); // Assume some values
List<Long> output = new ArrayList<Long>();
for(long val : input){
	lst.add(val);
}
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Author Name :
Ranjith

Total : 1 Comment

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One Response to “How to convert List to long[] or vise versa?”

  1. Akshata says:
    March 28, 2012 at 10:01 pm

    Hey renjith

    Can you help me in the project which is same as yours.. but il be using 8051 micro controller.

    can you send me some more details of your project?

    i mean documentary stuff lyk block diagram n al.

    hoping to see a reply from you.

    regards
    Akshata

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