converting long to string in java code example

Example 1: toString convert to long

long l = 12345L;
String str = Long.toString(l);
System.out.println(str); //prints '12345'

Example 2: toString convert to long

long l = 12345L;
//deprecated from Java 9, use valueOf for better performance
String str = new Long(l).toString(); // str is '12345'

Example 3: toString convert to long

long l = 12345L;
String str = DecimalFormat.getNumberInstance().format(l);
System.out.println(str); //str is '12,345'
//if you don't want formatting
str = new DecimalFormat("#").format(l);
System.out.println(str); //str is '12345'