Import Java.text.DecimalFormat;
/*
* A constant of decimal type is a double type by default, and a constant declaring a float type requires the use of f as the suffix.
*
* About Equals () and = =: For a string, it is simple to compare the Unicode sequence of two strings to the equivalent, if equal returns true;
* = = compares the addresses of two strings, that is, whether they are references to the same string.
*/
public class Test {
public static void Main (string[] args) {
Double num=3.237;
System.out.print (num);
Floating-point type must be suffixed with F or f
float num1=3.2f;
System.out.println (NUM1);
String comparisons with the Equals () function
String str= "Hello";
if (Str.equals ("Heldlo")) {
System.out.println ("Two strings identical");
}else{
System.out.println ("Two strings are not the same");
}
}
}
Java string comparisons and use of decimal floating-point types