package com.google.common.base;

import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;

/* loaded from: classes.dex */
public class Joiner {
    private final String a;

    public static Joiner a(char c) {
        return new Joiner(String.valueOf(c));
    }

    public static Joiner b(String str) {
        return new Joiner(str);
    }

    private Joiner(String str) {
        Preconditions.a(str);
        this.a = str;
    }

    public <A extends Appendable> A a(A a, Iterator<?> it) throws IOException {
        Preconditions.a(a);
        if (it.hasNext()) {
            a.append(a(it.next()));
            while (it.hasNext()) {
                a.append(this.a);
                a.append(a(it.next()));
            }
        }
        return a;
    }

    private Joiner(Joiner joiner) {
        this.a = joiner.a;
    }

    public final StringBuilder a(StringBuilder sb, Iterator<?> it) {
        try {
            a((Joiner) sb, it);
            return sb;
        } catch (IOException e) {
            throw new AssertionError(e);
        }
    }

    public final String a(Iterable<?> iterable) {
        return a(iterable.iterator());
    }

    public final String a(Iterator<?> it) {
        StringBuilder sb = new StringBuilder();
        a(sb, it);
        return sb.toString();
    }

    public final String a(Object[] objArr) {
        return a((Iterable<?>) Arrays.asList(objArr));
    }

    public Joiner a(final String str) {
        Preconditions.a(str);
        return new Joiner(this) { // from class: com.google.common.base.Joiner.1
            @Override // com.google.common.base.Joiner
            CharSequence a(Object obj) {
                return obj == null ? str : Joiner.this.a(obj);
            }

            @Override // com.google.common.base.Joiner
            public Joiner a(String str2) {
                throw new UnsupportedOperationException("already specified useForNull");
            }
        };
    }

    CharSequence a(Object obj) {
        Preconditions.a(obj);
        return obj instanceof CharSequence ? (CharSequence) obj : obj.toString();
    }
}