Java ArrayList toArray() to get an array from the ArrayList with the same elements in order.

ArrayList

ArrayList.toArray() get an array from the ArrayList.
It returns the array.

Examples with output

add()

ArrayList<String> languages = new ArrayList<String>();
languages.add("Java");
languages.add("PHP");
languages.add("HTML");
System.out.println(languages); //[Java, PHP, HTML]
Object[] my_array = languages.toArray();

System.out.println(" Printing array elements "); 

for (Object value : my_array) {
	System.out.println(value); 
}

Output is here

[Java, PHP, HTML]
 Printing array elements 
Java
PHP
HTML

Integer array

ArrayList<Integer> marks = new ArrayList<Integer>();
marks.add(54);
marks.add(55);
marks.add(56);

System.out.println(marks); //[Java, PHP, HTML]

Object[]  my_array=marks.toArray();
System.out.println(" Printing array elements "); 

for (Object value : my_array) {
	System.out.println(value); 
}

Output

[54, 55, 56]
 Printing array elements 
54
55
56

Using size() to get the number of elements and use the same to declare the array.

ArrayList<Integer> marks = new ArrayList<Integer>();
marks.add(54);
marks.add(55);
marks.add(56);

System.out.println(marks); //[Java, PHP, HTML]

Integer my_array[] = new Integer[marks.size()]; 
my_array = marks.toArray(my_array); 

System.out.println(" Printing array elements "); 

for (Object value : my_array) {
	System.out.println(value); 
}

Output

[54, 55, 56]
 Printing array elements 
54
55
56

ArrayList Tutorials

add() contains() clear() clone() Java - Tutorials

ArrayList.toArray()

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