检查方程中的矛盾之处

/*
 * LeetCode 2307: Check Contradictions in Equations using Java Stream
 * 
 * Problem Statement:
 * You are given a list of equations, each of which contains a variable and its value.
 * Some of the equations may contradict each other. Your task is to check if there are any contradictions.
 * 
 * Approach:
 * - Use a HashMap to store the variable and its value.
 * - Use Java Stream to process each equation and check for contradictions.
 * - If a contradiction is found, return true.
 * - If no contradictions are found after processing all equations, return false.
 */

import java.util.HashMap;
import java.util.Map;
import java.util.stream.Stream;

public class CheckContradictionsStream {
    public boolean checkContradictions(String[] equations) {
        Map<String, Integer> map = new HashMap<>();
        return Stream.of(equations).anyMatch(equation -> {
            String[] parts = equation.split("=");
            String variable = parts[0].trim();
            int value = Integer.parseInt(parts[1].trim());
            return map.containsKey(variable) ? map.get(variable) != value : (map.put(variable, value) == null);
        });
    }

    public static void main(String[] args) {
        CheckContradictionsStream checker = new CheckContradictionsStream();
        String[] equations = {"x=1", "y=2", "x=2"};
        System.out.println(checker.checkContradictions(equations)); // Output: true
    }
}