Create a String array from multiple Integer Arrays

Question

I am stuck in the following problem from a long time -

I want to create a String array StrTime from 3 Int arrays.

Input Arrays

int Time1[]={"1.1","2.1","4.1"};
int Time2[]={"2.5","4.7","5.1"};
int Time3[]={"12.55","1.11","2.1"};

CurrentTime = 2.0;

So loop though each integer array, check Time1, the first array item which is greater than 2.0 should be put in our String array, Noe check Time2 for the same and Time3.

At end we should get output String array as -

Output Array

String strTime[] ={"2.1","None","2.1"}

Can someone help me????

UPDATE:

Also is there a way to create a double [] like below-\ {1,2,,3,4,,5}

that should not compile. You are assigning int[] a String[]!!!
The array initialization won't compile and - shouldn't the output be {"2.1", "2.5", "12.55"} if I get your requirements right...
@Nishant. Yes, because of that fact, I would also call it DIFFICULT

Andreas_D · Accepted Answer · 2012-08-11 13:22:41Z

up vote 0 down vote accepted

May be a typo, but that's the way to init the arrays (they should be double):

double time1[]={1.1, 2.1, 4.1};
double time2[]={2.5, 4.7, 5.1};
double time3[]={12.55, 1.11, 2.1};

Hints:

create a new String array for the result
for-loop through the first array
compare the current value with your threshold, if the current value is greater then store it in the first slot of the string array (need to convert it to string), and break out of the loop.
repeat the last to steps for the other two arrays

edited Aug 11 at 13:22

answered Aug 11 at 13:15

Andreas_D
48.8k22467

	I was still editing it... – Andreas_D Aug 11 at 13:18
	How to convert that to String. – user1560909 Aug 11 at 14:08
	`String intAsString = "" + intValue;` - this is the simplest solution for this problem. – Andreas_D Aug 11 at 14:23
	BTW - why did you add that update to your question? The answer to that is in my and in Reimus' answers.. Haven't you read it? – Andreas_D Aug 11 at 14:24

feedback

Reimeus · Answer 2 · 2012-08-11 13:16:54Z

up vote 0 down vote

Use:

    double time1[]={1.1, 2.1, 4.1};
    double time2[]={2.5, 4.7, 5.1};
    double time3[]={12.55, 1.11, 2.1};

answered Aug 11 at 13:16

Reimeus
18.3k2617

feedback

davidmontoyago · Answer 3 · 2012-08-11 13:40:28Z

When you get it compiling, you could use org.apache.commons.collections.CollectionUtils and org.apache.commons.collection.Predicate to filter without loops.

CollectionUtils.find( getACollectionOfYourArray() , new Predicate() {
            public boolean evaluate(Object val) {
                // if is gt 2
                return true;
            }

        });

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Create a String array from multiple Integer Arrays

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Create a String array from multiple Integer Arrays

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