I want put value of a at {0}. With C#, I code as:
String a="123"
String b="Xin chao: {0}, ban the nao";
String c=String.Format(b,a);
But in Java I don't know. Can you help me?
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4 Answers
Java's counterpart is java.text.MessageFormat that allows placeholders like the one in your question can be replaced using format method as
String a = "123";
MessageFormat.format("Xin chao: {0}, ban the nao", a);
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String b= "Xin chao: %s";
String bF = String.format(b,"123");
2 Comments
Joachim Sauer
String.format() is a static method.
Riccardo
Yes i forgot it and i have modified my answer right now. thanks
See String.format(String format, Object... args).
For instance
String s = String.format("Xin chao: %1$s", "123");
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If you don't know where the {0} will appear, you can use String.replaceAll() method:
String a = "123";
String b = "Xin chao: {0}, ban the nao";
String c = b.replaceAll("\\{0\\}", a);
You might want to check StringEscapeUtils to do automatic escaping.
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