How to define an Array : Array Basics « Collections « Java Tutorial





  1. An array is a named set of same-type variables.
  2. Each variable in the array is called an array element.
  3. The first element will have an index of 0.
public class MainClass {

  public static void main(String[] arg) {
    int[] intArray = new int[10];

    for (int i = 0; i < 10; i++) {
      intArray[i] = 100;
    }

    for (int i = 0; i < 10; i++) {
      System.out.println(intArray[i]);
    }

  }

}
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9.3.Array Basics
9.3.1.How to define an Array
9.3.2.Initializing array elements by index
9.3.3.Alternative Array Declaration Syntax
9.3.4.Anonymous arrays are declared similarly to regular arrays
9.3.5.An array is a Java object
9.3.6.To reference the components of an array
9.3.7.The Length of an Array
9.3.8.Initializing Arrays
9.3.9.Using a for loop to iterate over all the elements and set the values
9.3.10.Arrays of Characters
9.3.11.Using the Collection-Based for Loop with an Array
9.3.12.Changing Array Size
9.3.13.Array Reallocation
9.3.14.Use System.arraycopy to duplicate array
9.3.15.Minimum and maximum number in array
9.3.16.Shuffle elements of an array
9.3.17.Merge (or add) two arrays into one
9.3.18.Circular Buffer