how to convert long long to string in java code example

Example 1: 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 2: toString convert to long

long number = 45;
System.out.println(Long.toBinaryString(number)); //101101
System.out.println(Long.toOctalString(number)); //55
System.out.println(Long.toHexString(number)); //2d
System.out.println(Long.toString(number, 5)); //140