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}

Answer 1

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;
            }

        });

Answer 2

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

Answer 3

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};