扩展ByteBuffer类

import java.nio.ByteBuffer;

public class ExtendedByteBuffer extends ByteBuffer {

    public ExtendedByteBuffer(int capacity) {
        super(capacity);
    }

    public void putInt(int value) {
        putInt(position(), value);
        position(position() + Integer.BYTES);
    }

    public int getInt() {
        int value = getInt(position());
        position(position() + Integer.BYTES);
        return value;
    }

    // 添加其他方法，例如 putLong、getLong、putDouble、getDouble 等
}

ExtendedByteBuffer buffer = new ExtendedByteBuffer(1024);

buffer.putInt(42);
buffer.putInt(84);

buffer.flip();

int value1 = buffer.getInt(); // 42
int value2 = buffer.getInt(); // 84