Java2007-09-02
indexOf() and lastIndexOf() in Java
These two methods are overloaded in several different ways. In all cases, the methods return the index at which the character or substring was found, or 1 on failure.
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Java2007-09-02
How to use equals() and equalsIgnoreCase() in Java
The comparison using equals() is case-sensitive. To perform a comparison that ignores case differences, call equalsIgnoreCase(). When it compares two strings, it considers A-Z to b
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How to use regionMatches() in Java
The regionMatches() method compares a specific region inside a string with another specific region in another string. There is an overloaded form that allows you to ignore case in
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startsWith() and endsWith() in Java
String defines two routines that are, more or less, specialized forms of regionMatches(). The startsWith() method determines whether a given String begins with a specified string.
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equals() Versus == in Java
It is important to understand that the equals() method and the == operator perform two different operations. As just explained, the equals() method compares the characters inside a
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compareTo() in Java
Often, it is not enough to simply know whether two strings are identical. For sorting applications, you need to know which is less than, equal to, or greater than the next. A strin
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Java2007-09-02
Extract characters in Java
The String class provides a number of ways in which characters can be extracted from a String object. Each is examined here. Although the characters that comprise a string within a
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String Conversion 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 using 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
Read tutorialJava2007-08-24
ZIP files in a folder and List files in a folder using Java Program
This Java sample program demonstrates two things. 1. Zip files. 2. To list all the files in a folder
Read tutorialJava2007-08-21
Sample Java program shows how to write to COM port using Java.
This Sample Java program shows how to write to COM port using Java.If you
Read tutorialJava2007-08-21
Sample Java program shows how to read from COM port using Java
This Sample Java program shows how to read from COM port using Java.If you
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