heartin's blog

Remainder Operator in Java Can Return Negative

Submitted by heartin on Sat, 08/25/2012 - 01:39

According to mathematics, remainders are always positive. However, in java, when the remainder operation returns a nonzero result, it has the same sign as its left operand.  Though most mathematicians won’t agree, Java Language Specification still refers to % as a remainder operator only.

Expressions, Operands and Operators

Submitted by heartin on Sat, 08/25/2012 - 01:28

An expression consists of operands and operators. A logical expression (e.g. a>b) is an expression that evaluate to a true or a false value. Operators with higher precedence are evaluated before operators with relatively lower precedence, when they come together.

Operator Plus(+) Overloading in Java

Submitted by heartin on Sat, 08/25/2012 - 01:18

Java doesn't allow operator overloading yet + is overloaded for class String. Here we will discuss examples for use of + with Strings and characters.

Platform Specific Line Separator in Java

Submitted by heartin on Sat, 08/25/2012 - 00:55

The line separator is the name given to the character or characters used to separate lines of text, and vary from platform to platform.

Unreachable Code in Java

Submitted by heartin on Sat, 08/25/2012 - 00:12

It is a compile-time error if a statement cannot be executed because it is unreachable. There are many rules, but we will consider few important ones here.

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