how to declare an array in java

int[] intArray = new int[]{ 1,2,3,4,5,6,7,8,9,10 }

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4.25

Awgiedawgie 440220 points

                                    int[] array1 = new int[5]; //int array length 5
String[] array2 = new String[5] //String array length 5
double[] array3 = new double[5] // Double array length 5

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4.25 (4 Votes)

3.5

A-312 69370 points

                                    An array is an ordered collection of elements of the same type, identified by a pair of square brackets []. 
 
 To use an array, you need to:
1. Declare the array with a name and a type. Use a plural name for array, e.g., marks, rows, numbers. All elements of the array belong to the same type.
2. Allocate the array using new operator, or through initialization, e.g.
  
  int[] marks;  // Declare an int array named marks
              // marks contains a special value called null.
int marks[];  // Same as above, but the above syntax recommended
marks = new int[5];   // Allocate 5 elements via the &quot;new&quot; operator
// Declare and allocate a 20-element array in one statement via &quot;new&quot; operator
int[] factors = new int[20];
// Declare, allocate a 6-element array thru initialization
int[] numbers = {11, 22, 33, 44, 55, 66}; // size of array deduced from the number of items

Thank you! 4

3.5 (4 Votes)

4.22

A-312 69370 points

                                    int[] array = new int[/*size*/];
// Works for double, char, etc.

Thank you! 9

4.22 (9 Votes)

4.4

Lionel Aguero 33605 points

                                    int intArray[];    //declaring array
intArray = new int[20];  // allocating memory to array
//OR
int[] intArray = new int[20]; // combining both statements in one

Thank you! 5

4.4 (5 Votes)

4.33

Phoenix Logan 186125 points

                                    //method 1
int[] age = new int[3];
        age[0] = 1;
        age[1] = 3;
        age[2] = 6;

        for (int i=0; i &lt; 3; i++)
            System.out.println(age[i]);

//method 2
        int[] num = {3,3,5};
        //int num[] = {3,3,5}; also works the same

        System.out.println(num[0]);

Thank you! 6

4.33 (6 Votes)

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