JavaにおけるStringFormatとMessageFormatの違い
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JavaにおけるStringFormatとMessageFormatの違い
MessageFormat.format()
format string accepts argument positions (eg. {0}, {1}). Example:
The developer doesn't have to worry about argument types, because they are, most often, recognized and formated according to current Locale.
String.format()
format string accepts argument type specifiers (eg. %d for numbers, %s for strings). Example:
String.format() generally gives you much more control over how the argument is displayed thanks to many options you can specify with the type specifier. For instance, format string "%-6.2f"specifies to display a left-aligned floating point number with min. width 6 chars and precision of 2 decimal places.
ref
difference between MessageFormat.format and String.format in jdk1.5?
MessageFormat.format()
format string accepts argument positions (eg. {0}, {1}). Example:
MessageFormat.format("This is year {0}!",1992)
The developer doesn't have to worry about argument types, because they are, most often, recognized and formated according to current Locale.
String.format()
format string accepts argument type specifiers (eg. %d for numbers, %s for strings). Example:
String.format("This is year %d!")
String.format() generally gives you much more control over how the argument is displayed thanks to many options you can specify with the type specifier. For instance, format string "%-6.2f"specifies to display a left-aligned floating point number with min. width 6 chars and precision of 2 decimal places.
ref
difference between MessageFormat.format and String.format in jdk1.5?