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Java Reflection - Array.getFloat() Examples

Java Reflection Java Java API

Class:

java.lang.reflect.Array

Method:

public static float getFloat(Object array,
                             int index)
                      throws IllegalArgumentException,
                             ArrayIndexOutOfBoundsException

Returns the value of the indexed component in the specified array object, as a float .

Examples

package com.logicbig.example.array;

import java.lang.reflect.Array;

public class GetFloatExample {

    public static void main(String... args) {
        float[] arr = {1, 4, 9};
        float f = Array.getFloat(arr, 1);
        System.out.println(f);
    }
}

Output

4.0

package com.logicbig.example.array;

import java.lang.reflect.Array;

public class GetFloatExample2 {

    public static void main(String... args) {
        Float[] arr = {1f, 4f, 9f};
        float f = Array.getFloat(arr, 1);
        System.out.println(f);

    }
}

Output

Caused by: java.lang.IllegalArgumentException: Argument is not an array of primitive type
	at java.base/java.lang.reflect.Array.getFloat(Native Method)
	at com.logicbig.example.array.GetFloatExample2.main(GetFloatExample2.java:14)
	... 6 more

See Also