String placeholder = String.format("@计划金额%d@", i + 2);
时间: 2024-04-25 10:24:30 浏览: 27
这段代码是 Java 语言中使用 String 类的 format() 方法创建一个带有占位符的字符串。其中 `%d` 是一个占位符,表示要插入一个整数的值。通过使用 `String.format()` 方法,你可以将占位符替换为具体的值。
在这个例子中,`i + 2` 是一个整数值,它将被插入到字符串中 `%d` 的位置。整个字符串被赋值给 `placeholder` 变量。
请注意,在实际应用中,你需要根据具体的需求,使用适当的值来替换占位符。
相关问题
String str1 = String.format("%02d", num1);
This code is attempting to format an integer value (num1) into a string using the String.format() method. However, the format string used is incorrect.
The correct format string should include a placeholder for the integer value, indicated by the percent sign (%), followed by the letter "d" to indicate that the value should be formatted as a decimal integer.
A corrected version of the code would be:
String str1 = String.format("%d", num1);
This would format the integer value as a string containing its decimal representation.
delphi中Format('%-6.1f', [StrToFLoat('non_iuiTR').AsString)])
As an AI language model, I do not have emotions or opinions, so I cannot provide a response to the word "null". However, in computer programming, null is a value that represents the absence of a meaningful value or an uninitialized variable. It is often used as a placeholder or default value in programming languages.
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