Extract integer values from an array of strings into an array of int. Exceptions in the format of the string are trapped and 0 value(s) returned. - Java java.lang

Java examples for java.lang:String Array

  1. HOME
  2. Java
  3. java.lang
  4. String Array

Description

Extract integer values from an array of strings into an array of int. Exceptions in the format of the string are trapped and 0 value(s) returned.

Demo Code


//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        String[] src = new String[] { "1", "abc", "level", null,
                "java2s.com", "asdf 123" };
        System.out.println(java.util.Arrays
                .toString(copyStringToIntArray(src)));
    }//from   www  . ja va 2s.co  m

    /**
     * <p>Extract integer values from an array of strings into an array of int.</p>
     *
     * <p>Exceptions in the format of the string are trapped and 0 value(s) returned.</p>
     *
     * @param   src   an array of strings, each of which should be an integer numeric value
     * @return      an array of int
     */
    static public int[] copyStringToIntArray(String[] src) {
        if (src == null)
            return null;
        int n = src.length;
        int[] dst = new int[n];
        for (int j = 0; j < n; ++j) {
            int value = 0;
            try {
                value = Integer.valueOf(src[j]).intValue();
            } catch (NumberFormatException e) {
            } catch (NullPointerException e) {
            }
            dst[j] = value;
        }
        return dst;
    }
}

Related Tutorials