package java.io; public interface DataOutput { void write(int a1) throws IOException; void write(byte[] a1) throws IOException; void write(byte[] a1, int a2, int a3) throws IOException; void writeBoolean(boolean a1) throws IOException; void writeByte(int a1) throws IOException; void writeShort(int a1) throws IOException; void writeChar(int a1) throws IOException; void writeInt(int a1) throws IOException; void writeLong(long a1) throws IOException; void writeFloat(float a1) throws IOException; void writeDouble(double a1) throws IOException; void writeBytes(String a1) throws IOException; void writeChars(String a1) throws IOException; void writeUTF(String a1) throws IOException; }