Here is a tutorial on how to use the
java.util.Arrays class to sort Array values.
This example sorts an Array of Integers from the smallest to largest value:
Java Code
import java.util.Arrays;
public class HowToSortAnArray {
public static void main(String[] args) {
//Array of Integers
int[] myIntArray = new int[]{20,100,69,4};
//SORTS ARRAY FROM SMALLEST TO LARGEST INT
Arrays.sort(myIntArray);
//for loop to print Array values to console
for (int a = 0; a < myIntArray.length; a++) {
System.out.println(myIntArray[a]);
}
}
}
//Output: 4 20 69 100
Using the same example as above but with a String Array, this will sort the values by case and then into alphabetical order:
Java Code
import java.util.Arrays;
public class HowToSortAnArray {
public static void main(String[] args) {
String[] myStrArray = new String[] {"c", "b", "a", "D"};
//SORTS STRING ARRAY INTO CASE & THEN ALPHABETICAL ORDER
Arrays.sort(myStrArray);
//for loop to print int values to console
for (int a = 0; a < myStrArray.length; a++) {
System.out.println(myStrArray[a]);
}
}
}
//Output: D a b c
To sort into alphabetical order and be case insensitive you can use:
Java Code
import java.util.Arrays;
public class HowToSortAnArray {
public static void main(String[] args) {
String[] myStrArray = new String[] {"c", "b", "a", "D"};
//SORTS ARRAY INTO ALPHABETICAL ORDER
Arrays.sort(myStrArray, String.CASE_INSENSITIVE_ORDER);
//for loop to print int values to console
for (int a = 0; a < myStrArray.length; a++) {
System.out.println(myStrArray[a]);
}
}
}
//Output: a b c D
01-12-2008, 01:02 PM
How to Sort an Array using the java.util.Arrays class
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