在Java项目中如何将字符串转换成二进制码

public void toBinary(){
  String str = "王雪";
  char[] strChar=str.toCharArray();
  String result="";
  for(int i=0;i<strChar.length;i++){
    result +=Integer.toBinaryString(strChar[i])+ " ";
  }
  System.out.println(result);
}

//将二进制字符串转换成int数组
  public int[] BinstrToIntArray(String binStr) {    
    char[] temp=binStr.toCharArray();
    int[] result=new int[temp.length];  
    for(int i=0;i<temp.length;i++) {
      result[i]=temp[i]-48;
    }
    return result;
  }
  
  //将二进制转换成字符
   public char BinstrToChar(String binStr){
     int[] temp=BinstrToIntArray(binStr);
     int sum=0;
     for(int i=0; i<temp.length;i++){
       sum +=temp[temp.length-1-i]<<i;
     }  
     return (char)sum;
  }
  public void BinstrToStr(){
    String binStr = "111001110001011 1001011011101010 ";
    String[] tempStr=binStr.split(" ");
    char[] tempChar=new char[tempStr.length];
    for(int i=0;i<tempStr.length;i++) {
      tempChar[i]=BinstrToChar(tempStr[i]);
    }
    System.out.println(String.valueOf(tempChar));
   }