Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;

public class Main {
    public static <T> String[] compact(Collection<T> col) {

        Collection<String> result = new ArrayList();

        for (T e : col) {
            String str = e.toString();
            if (!str.trim().isEmpty())
                result.add(str);
        }

        return result.toArray(new String[result.size()]);

    }

    public static <T> String[] trim(Collection<T> col) {

        String[] result = new String[col.size()];

        int index = 0;
        for (T e : col) {
            result[index++] = e.toString().trim();
        }

        return result;

    }

    /** USE NATIVE c.toArray(a) */
    @Deprecated
    public static <T> T[] toArray(Collection<T> c, T[] a) {
        return c.toArray(a);
    }

    /** Returns a new array even if collection is empty */
    public static <T> T[] toArray(Collection<T> c, Class klass) {
        return toArray(c, (T[]) Array.newInstance(klass, c.size()));
    }

    /** Returns a new array or null if collection is empty */
    public static <T> T[] toArray(Collection<T> c) {
        return c.isEmpty() ? null : toArray(c, c.iterator().next().getClass());
    }
}