10.3.1 FilterInputstream lava Datalnputstream boolean readBoolean() throws IOException char readchar() throws IOException int readshort() throws IOException int readByte() throws IOException int readInt( throws IOException int readLong() throws IOException float readFloat( throws IOException double readDoubleo) throws IOException10.3.1 FilterInputStream DataInputStream： – boolean readBoolean() throws IOException – char readChar() throws IOException – int readShort() throws IOException – int readByte() throws IOException – int readInt() throws IOException – int readLong() throws IOException – float readFloat() throws IOException – double readDouble() throws IOException