Java2007-09-12
insert() and reverse() in Java
The insert() method inserts one string into another. It is overloaded to accept values of all the simple types, plus Strings and Objects. Like append(), it calls String.valueOf() t
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Java2007-09-12
append() in Java
The append() method concatenates the string representation of any other type of data to the end of the invoking StringBuffer object. It has overloaded versions for all the built-in
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concat(), replace(), and trim() Strings in Java
You can concatenate two strings using concat(), shown here. The replace() method replaces all occurrences of one character in the invoking string with another character. The trim()
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valueOf() and toString() in Java
When Java converts data into its string representation during concatenation, it does so by calling one of the overloaded versions of the string conversion method valueOf() defined
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String Concatenation in Java
In general, Java does not allow operators to be applied to String objects. The one exception to this rule is the + operator, which concatenates two strings, producing a String obje
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String Class Constructors in Java
The String class supports several constructors. To create an empty String, you call the default constructor. For example,
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Java2007-09-12
Disadvantages of using Native methods in Java
Native methods seem to offer great promise, because they enable you to gain access to your existing base of library routines, and they offer the possibility of faster run-time exec
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Sample using loadLibrary() to call Native methods in Java
Although it is rare, occasionally, you may want to call a subroutine that is written in a language other than Java. Typically, such a subroutine exists as executable code for the C
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strictfp in Java 2
Java 2 adds a new keyword to the Java language, called strictfp. With the creation of Java 2, the floating point computation model was relaxed slightly to make certain floating poi
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instanceof sample program in Java
Sometimes, knowing the type of an object during run time is useful. For example, you might have one thread of execution that generates various types of objects, and another thread
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Transient vs Volatile modifiers in Java
Java defines two interesting type modifiers: transient and volatile. These modifiers are used to handle somewhat specialized situations.
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Reading from a file and writing to a file using Java program
Java provides a number of classes and methods that allow you to read and write files. In Java, all files are byte-oriented, and Java provides methods to read and write bytes from a
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