java - 如何比较从 StringTokenizer 中提取的字符串

Question

我想使用该程序检查分区，但出了问题我无法修复。

例如:abc、def、ghi、jkl、mno

jkl = true; abc = flase

public boolean isDistrict (String districtCheck){

    StringTokenizer st = new StringTokenizer(address,",");
    int tokenno = st.countTokens();

    for(int i=0;i<tokenno-2;i++)
        st.nextToken();

    String district  = st.nextToken();
    if(st.nextToken()==district);
        return true
        else
        return flase

Answer 1

字符串不能用“==”进行比较，而是使用“equals()”

您的代码必须是:

public boolean isDistrict (String districtCheck){

    StringTokenizer st = new StringTokenizer(address,",");
    int tokenno = st.countTokens();

    for(int i=0;i<tokenno-2;i++)
        st.nextToken();

    String district  = st.nextToken();
    if(st.nextToken().equals(district))
        { return true; }
        else {
        return false; } }