Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.Map;

public class Main {
    /**
     * Puts the passed key and value into the map only if the value is not null.
     * 
     * @param map Map to add key and value to.
     * @param key Map key.
     * @param value Map value, if null will not be added to map.
     */
    public static void nullSafePut(final Map<String, String> map, final String key, final String value) {
        if (value != null) {
            map.put(key, value);
        }
    }

    /**
     * Puts the passed key and value into the map only if the value is not null.
     * 
     * @param map Map to add key and value to.
     * @param key Map key.
     * @param value Map value, if null will not be added to map.
     */
    public static void nullSafePut(final Map<String, String> map, final String key, final Integer value) {
        if (value != null) {
            map.put(key, value.toString());
        }
    }

    /**
     * Puts the passed key and value into the map only if the value is not -1.
     * 
     * @param map Map to add key and value to.
     * @param key Map key.
     * @param value Map value, if -1 will not be added to map.
     */
    public static void nullSafePut(final Map<String, String> map, final String key, final int value) {
        if (value != -1) {
            map.put(key, Integer.toString(value));
        }
    }

    /**
     * Puts the passed key and value into the map only if the value is not -1.
     * 
     * @param map Map to add key and value to.
     * @param key Map key.
     * @param value Map value, if -1 will not be added to map.
     */
    public static void nullSafePut(final Map<String, String> map, final String key, final double value) {
        if (value != -1) {
            map.put(key, Double.toString(value));
        }
    }
}