Question

我需要将返回值与BigDecimal和int值连接起来。

int vacationBalance = 5;
///
 public int recordVacation(int vacationBalance) {
    vacationBalance = this.vacationBalance;
    return vacationBalance;
}
////

@Override
public BigDecimal generatePayCheck() {
    wage = getWage() / 26;
    vacationBalance = recordVacation(vacationBalance);
    return BigDecimal.valueOf(wage).add(BigDecimal.valueOf(vacationBalance));

然而我不需要添加它，我需要将它们连接起来。我无法在文档中找到它来做到这一点。我想得到＆＃34; vacationBalance＆＃34;在主要方法。这可能吗？期望的结果将是：

"paycheck balance is X and vacation balance is y."

提前致谢。

Answer 1

根据您要求的结果，我认为您想要返回String。您可以使用String.format(String, Object...)构建

“薪水余额为X，休假余额为y。”

像

public String generatePayCheck() {
    wage = getWage() / 26;
    vacationBalance = recordVacation(vacationBalance);
    return String.format("paycheck balance is %s and "
            + "vacation balance is %s",wage, vacationBalance);
}

Answer 2

您也可以使用StringBuilder

public String generatePayCheck(){
       wage = getWage() / 26;
       vacationBalance = recordVacation(vacationBalance);
       StringBuilder str = new StringBuilder("paycheck balance is ");
       str.append(wage);
       str.append(" and vacation balance is ");
       str.append(vacationBalance);
       str.append(".");

       return str.toString();
}

连接字符串和BigDecimals

2 个答案: