类赋值问题

package 类赋值问题;

import java.util.Arrays;

public class ST {
    private byte[] szMsgCode = new byte[4]; 
    private byte[] sBitMap = new byte[3]; 

    public byte[] getSzMsgCode() {
        return szMsgCode;
    }

    public void setSzMsgCode(byte[] szMsgCode) {
        this.szMsgCode = szMsgCode;
    }

    public byte[] getsBitMap() {
        return sBitMap;
    }

    public void setsBitMap(byte[] sBitMap) {
        this.sBitMap = sBitMap;
    }

    @Override
    public String toString() {
        return "ST [szMsgCode=" + Arrays.toString(szMsgCode) + ", sBitMap="
                + Arrays.toString(sBitMap) + "]";
    }

}

package 类赋值问题;

public class Test {
    public static void main(String[] args) {
        ST st = new ST();
        byte[] SDATA = { 1 };
        SDATA[0] = 3;
        st.setSzMsgCode(SDATA);
        System.out.println(st.getSzMsgCode()[0]);
        SDATA[0] = 2;
        st.setsBitMap(SDATA);
        System.out.println(st.toString());
    }

}

3
ST [szMsgCode=[2], sBitMap=[2]]