Question

How to write a method in Java with these set of instructions:

Method name will be:

public static boolean containsNumber(String[] array, String str)

{

// instruction: returns true if str is an element that is equal to an element of array

// return false if str does not appear in array.

// using compare String equality (str1.equals(str2).

// JUST assume that array is not null and not empty

// and NONE of strings in array is null. Assume str is not null either.

}

Answer 1

Answer


public static boolean containsNumber(String[] array, String str)
{
    // instruction: returns true if str is an element that is equal to an element of array
    // return false if str does not appear in array.
    // using compare String equality (str1.equals(str2).
    // JUST assume that array is not null and not empty
    // and NONE of strings in array is null. Assume str is not null either.
    for(int i = 0;i<array.length;i++){
        if(array[i].equals(str)){
            return true;
        }
    }
    return false;
}

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