package java.lang;
import org.checkerframework.dataflow.qual.Pure;
import org.checkerframework.dataflow.qual.SideEffectFree;
import org.checkerframework.checker.nullness.qual.Nullable;
public final class StringBuffer extends AbstractStringBuilder implements java.io.Serializable, CharSequence{
static final long serialVersionUID = 0;
public StringBuffer() { throw new RuntimeException("skeleton method"); }
public StringBuffer(int a1) { throw new RuntimeException("skeleton method"); }
public StringBuffer(String a1) { throw new RuntimeException("skeleton method"); }
public StringBuffer(CharSequence a1) { throw new RuntimeException("skeleton method"); }
@Pure public synchronized int length() { throw new RuntimeException("skeleton method"); }
public synchronized int capacity() { throw new RuntimeException("skeleton method"); }
public synchronized void ensureCapacity(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized void trimToSize() { throw new RuntimeException("skeleton method"); }
public synchronized void setLength(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized char charAt(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized int codePointAt(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized int codePointBefore(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized int codePointCount(int a1, int a2) { throw new RuntimeException("skeleton method"); }
public synchronized int offsetByCodePoints(int a1, int a2) { throw new RuntimeException("skeleton method"); }
public synchronized void getChars(int a1, int a2, char[] a3, int a4) { throw new RuntimeException("skeleton method"); }
public synchronized void setCharAt(int a1, char a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(@Nullable Object a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(@Nullable String a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(@Nullable StringBuffer a1) { throw new RuntimeException("skeleton method"); }
public StringBuffer append(@Nullable CharSequence a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(@Nullable CharSequence a1, int a2, int a3) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(char[] a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(char[] a1, int a2, int a3) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(boolean a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(char a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer appendCodePoint(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(long a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(float a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer append(double a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer delete(int a1, int a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer deleteCharAt(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer replace(int a1, int a2, String a3) { throw new RuntimeException("skeleton method"); }
public synchronized String substring(int a1) { throw new RuntimeException("skeleton method"); }
public synchronized CharSequence subSequence(int a1, int a2) { throw new RuntimeException("skeleton method"); }
public synchronized String substring(int a1, int a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer insert(int a1, char[] a2, int a3, int a4) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer insert(int a1, @Nullable Object a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer insert(int a1, @Nullable String a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer insert(int a1, char[] a2) { throw new RuntimeException("skeleton method"); }
public StringBuffer insert(int a1, @Nullable CharSequence a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer insert(int a1, @Nullable CharSequence a2, int a3, int a4) { throw new RuntimeException("skeleton method"); }
public StringBuffer insert(int a1, boolean a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer insert(int a1, char a2) { throw new RuntimeException("skeleton method"); }
public StringBuffer insert(int a1, int a2) { throw new RuntimeException("skeleton method"); }
public StringBuffer insert(int a1, long a2) { throw new RuntimeException("skeleton method"); }
public StringBuffer insert(int a1, float a2) { throw new RuntimeException("skeleton method"); }
public StringBuffer insert(int a1, double a2) { throw new RuntimeException("skeleton method"); }
@Pure public int indexOf(String a1) { throw new RuntimeException("skeleton method"); }
@Pure public synchronized int indexOf(String a1, int a2) { throw new RuntimeException("skeleton method"); }
@Pure public int lastIndexOf(String a1) { throw new RuntimeException("skeleton method"); }
@Pure public synchronized int lastIndexOf(String a1, int a2) { throw new RuntimeException("skeleton method"); }
public synchronized StringBuffer reverse() { throw new RuntimeException("skeleton method"); }
@SideEffectFree public synchronized String toString() { throw new RuntimeException("skeleton method"); }
}