Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

public class Main {
    /**
     * Finds the value that belongs to the given key in the given map.
     * If the key is null or no value is found, an {@link IllegalStateException} is thrown.
     */
    public static <T1, T2> T2 find(T1 key, Map<T1, T2> map) throws IllegalStateException {
        if (key == null)
            throw new IllegalStateException("Key is null");
        T2 ret = map.get(key);
        if (ret == null)
            throw new IllegalStateException("No value for key " + key);
        return ret;
    }
}