JAVA

add to array function java

// imports
import java.util.ArrayList;
import java.util.List;

// Creating a new ArrayList
List<Integer> myIntArray = new ArrayList<Integer>();
// Adding the element '3' to the array
myIntArray.add(3);

java array add element

// A better solution would be to use an ArrayList which can grow as you need it. 
// The method ArrayList.toArray( T[] a ) 
// gives you back your array if you need it in this form.

List<String> where = new ArrayList<String>();
where.add(element);
where.add(element);

// If you need to convert it to a simple array...

String[] simpleArray = new String[ where.size() ];
where.toArray( simpleArray );

Java add elements array

mport java.util.ArrayList;  
import java.util.Arrays;  
public class JavaAddElementUsingList {  
public static void main(String[] args) {  
// TODO Auto-generated method stub  
Integer arr[] = {1,2,3,4,5,6};  
System.out.println("Array:"+Arrays.toString(arr));  
ArrayList<Integer> arrayList = new ArrayList<Integer>(Arrays.asList(arr));  
arrayList.add(7);  
arr = arrayList.toArray(arr);  
System.out.println("Array after adding element: "+Arrays.toString(arr));  
  
}  
  
  
}  

java add element to existing array

//original array
String[] rgb = new String[] {"red", "green"};
//new array with one more length
String[] rgb2 = new String[rgb.length + 1];
//copy the old in the new array
System.arraycopy(rgb, 0, rgb2, 0, rgb.length);
//add element to new array
rgb2[rgb.length] = "blue";
//optional: set old array to new array
rgb = rgb2;

java append to array

List<String> where = new ArrayList<String>();
where.add( ContactsContract.Contacts.HAS_PHONE_NUMBER+"=1" );
where.add( ContactsContract.Contacts.IN_VISIBLE_GROUP+"=1" );

java add values to array

// If you read array of unknown length, from console
// and you want to put numbers into array of fixed length
long[] array = Arrays.stream(scanner.nextLine().split(" "))
                .mapToLong(Long::parseLong)
                .toArray();

int[] array = Arrays.stream(scanner.nextLine().split(" "))
                .mapToInt(Integer::parseInt)
                .toArray();

java append to array

String[] simpleArray = new String[ where.size() ];
where.toArray( simpleArray );

java append to array

// iterate over the array
for( String oneItem : where ) {
    ...
}

// get specific items
where.get( 1 );