Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Map;
import java.util.Set;

public class Main {
    /**
     * <p>Return subMap from target Map where the key start with appointing keyPrefix, subMap's remove keyPrefix</p>
     * <p>subMap([key1:value1,key21:value21,key22:value22], new HashMap(), key2) return [1:value21,2:value22]</p>
     * @param sourceMap
     * @param targetMap
     * @param keyPrefix
     * @return
     */
    public static <E extends Object> Map<String, E> subMap(Map<String, E> sourceMap, Map<String, E> targetMap,
            String keyPrefix) {
        Set<Map.Entry<String, E>> entrys = sourceMap.entrySet();
        for (Map.Entry<String, E> entry : entrys) {
            String key = entry.getKey();
            if (key != null && key.startsWith(keyPrefix)) {
                targetMap.put(key.replace(keyPrefix, ""), entry.getValue());
            }
        }
        return targetMap;
    }
}