Android

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Android Formatting Strings

From WikiOD

Format a string resource[edit | edit source]

You can add wildcards in string resources and populate them at runtime:

Edit strings.xml

<string name="my_string">This is %1$s</string>

Format string as needed

String fun = "fun";
context.getString(R.string.my_string, fun);

Formatting data types to String and vise versa[edit | edit source]

Data types to string formatting

Data types like int, float, double, long, boolean can be formatted to string using String.valueOf().

String.valueOf(1); //Output -> "1"
String.valueOf(1.0); //Output -> "1.0"
String.valueOf(1.2345); //Output -> "1.2345"
String.valueOf(true); //Output -> "true"

Vise versa of this, formatting string to other data type

Integer.parseInt("1"); //Output -> 1
Float.parseFloat("1.2"); //Output -> 1.2
Boolean.parseBoolean("true"); //Output -> true

Format a timestamp to string[edit | edit source]

For full description of patterns, see SimpleDateFormat reference

Date now = new Date();
long timestamp = now.getTime();
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy", Locale.US);
String dateStr = sdf.format(timestamp);

Credit:Stack_Overflow_Documentation