Java中使用return string.format(...)格式化字符串

Question

假设我想返回这样的东西： "Title 书名, 作者 作者名: $价格"

粗体部分是变量。 我无法使用string.format("%s .., blah blah")来返回这个结果。

- Janezcka

Answer 1

String title = "bookTitle";
String author = "bookAuthor";
double cost = 100;
String text = String.format("Title %s, Author %s: $%.2f", title, author, cost);
System.out.println(text); // prints "Title bookTitle, Author bookAuthor: $100.00"
// or System.out.pritnf("Title %s, Author %s: $%.2f", title, author, cost);

- Eng.Fouad

Answer 2

两个字符串和一个精度为2的浮点数

String.format("Title %s, Author %s: $%f.2", bookTitle, bookAuthor, cost);

- ratchet freak

Answer 3

String fs;
fs = String.format("Title %t, Author %a: $%c", bookTitle, bookAuthor, cost);
System.out.println(fs);

http://download.oracle.com/javase/tutorial/java/data/strings.html

- Kevin Bowersox