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Create array with Array.newInstance with Java Reflection
The java.lang.reflect.Array.newInstance(Class<?> componentType, int length) method forms a new array with the component type and length as specified in the arguments
Declaration − The java.lang.reflect.Array.newInstance(Class<?> componentType, int length) method is declared as follows −
public static Object newInstance(Class<?> componentType, int length) throws IllegalArgumentException, NegativeArraySizeException
Let us see a program to create array with Array.newInstance with Java Reflection −
Example
import java.lang.reflect.Array;
public class Example {
public static void main(String[] args) {
String[] arr = (String[]) Array.newInstance(String.class, 3); // creates a new array
Array.set(arr, 0, "A");
Array.set(arr, 1, "B");
Array.set(arr, 2, "C");
System.out.println("Element 1 = " + Array.get(arr, 0));
System.out.println("Element 2 = " + Array.get(arr, 1));
System.out.println("Element 3 = " + Array.get(arr, 2));
}
}Output
Element 1 = A Element 2 = B Element 3 = C
Updated on: 25-Jun-2020
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