package com.google.common.collect;

import com.google.common.base.Preconditions;
import com.google.common.base.Predicates;
import java.util.Collection;

/* loaded from: classes.dex */
public final class Collections2 {
    static boolean a(Collection<?> collection, Object obj) {
        Preconditions.a(collection);
        try {
            return collection.contains(obj);
        } catch (ClassCastException | NullPointerException unused) {
            return false;
        }
    }

    static boolean b(Collection<?> collection, Object obj) {
        Preconditions.a(collection);
        try {
            return collection.remove(obj);
        } catch (ClassCastException | NullPointerException unused) {
            return false;
        }
    }

    static boolean a(Collection<?> collection, Collection<?> collection2) {
        return Iterables.a((Iterable) collection2, Predicates.a((Collection) collection));
    }

    static String a(Collection<?> collection) {
        StringBuilder a = a(collection.size());
        a.append('[');
        boolean z = true;
        for (Object obj : collection) {
            if (!z) {
                a.append(", ");
            }
            z = false;
            if (obj == collection) {
                a.append("(this Collection)");
            } else {
                a.append(obj);
            }
        }
        a.append(']');
        return a.toString();
    }

    static StringBuilder a(int i) {
        CollectPreconditions.a(i, "size");
        return new StringBuilder((int) Math.min(i * 8, 1073741824L));
    }

    static <T> Collection<T> a(Iterable<T> iterable) {
        return (Collection) iterable;
    }
}