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• KeySelect.java

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xxl.mathematica.map.KeySelect Maven / Gradle / Ivy

package xxl.mathematica.map;

import java.util.Map;
import java.util.function.Predicate;

/**
 * 键选择
 */
public class KeySelect {
    /**
     * 键选择
     *
     * @param src
     * @param p
     * @param 
     * @param 
     * @return
     */
    public static  Map keySelect(Map src, Predicate p) {
        return io.vavr.collection.HashMap.ofAll(src)
                .filter(tuple2 -> p.test(tuple2._1()))
                .toJavaMap();
    }
}