String to List

String to List
String[] to List<String>
List<Object[]> To String
String to int

String to List

    String str = "Hello";
    Sting[] strList = str.split(" ");
    System.out.println("String str to List: " + strList[0]);

String[] to List<String>

    String[] name = {"Tom", "Jack"};
    List<String> listStr = new ArrayList<String>();
    listStr.add(name[0]);

List<Object[]> To String

    List<Object[]> ResultList = new ArrayList<Objec[]>();
    //遞歸查詢屬於同一部門下面的員工ID 
    String Query = "select ID from emp_group start with ID = '0001' connect by nocycle prior ID = PARENTID";
    ResultList = super.getRowList(Query);

    StringBuilder params = new StringBuilder();
    
    // To eg: '0001','0002','003'
    for(int i = 0; i < ResultList.size(); i++) {
        params.append("'");
        params.append(ResultList.get(i)[0]);
        params.append("'");
        // add "," 
        if ( i != ResultList() - 1) {
            params.append(",");
        }
    }

String to int

    int num = Integer.valueOf(rs.getString(1)).intValue; 
    // This function may throw NumberFormatException 
    int num2 = Integer.parseInt(StringName);