小编yan*_*ike的帖子

PrintStream类型中的printf(String,Object [])方法不适用于参数(...)

为什么通过简单调用printf会出现以下编译错误？我的代码:

import java.util.Scanner;

public class TestCodeBankAccInputs
{
    public static void main(String[] args)
    {
        String displayName = "Bank of America Checking";
        int balance = 100;
        System.out.printf("%s has %7.2f", displayName, balance);
    }
}

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在编译时我收到以下错误:

Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
  The method printf(String, Object[]) in the type PrintStream is not applicable for the 
    arguments (String, String, double)
  at TestCodeBankAccInputs.main(TestCodeBankAccInputs.java:9)

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造成这种情况的原因是什么？如何解决？