Java array add element

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 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 );

Source: stackoverflow.com

Similar codes

0 vote127 views1 answer
How to get all super class of a java class
Java
0 vote134 views1 answer
Private method in interface java
Java
1 vote86 views1 answer
Combinations
Java
0 vote114 views1 answer
How to skip a line with a filewriter java
Java
1 vote82 views1 answer
Reverse integer java
Java
1 vote113 views1 answer
Java algorithm for drawing a line
Java
1 vote125 views1 answer
Solucion var java
Java
1 vote114 views1 answer
Sc.nextline skips
Java
3 votes110 views2 answers
Java infinite for loop
Java
0 vote132 views1 answer
Hide tablayout tab android
Java