concat(String str)
String concat(String str)
- Concatenates the specified string to the end of this string.
public class Main {
public static void main(String[] argv) {
String str = "java2s.com";
str = str.concat("Java2s.com");
System.out.println(str);
}
}
The output:
java2s.comJava2s.com
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Java Book
Essential Classes
Java Book
Essential Classes
String:
- String type and Literals
- String Concatenation
- String.CASE_INSENSITIVE_ORDER
- String Constructor
- charAt(int index):Get a single char by index
- String: compareTo(String stringValue)
- concat(String str)
- equals():Compare two string value for equality
- equals( ) vs ==
- contains(CharSequence s)
- copyValueOf(char[] data)
- endsWith(String suffix)
- format():Format a string
- getBytes():Get byte array from string
- getChars()
- indexOf
- intern a string
- isEmpty:if string is empty
- lastIndexOf()
- length() Returns the length of this string
- startsWith( )
- toLowerCase() and toUpperCase(): convert string case with locale
- substring:Get sub string from a string
- toCharArray():Get char array from string
- toString( )
- trim()
- valueOf():Convert boolean, char, double, float,int,long,object to String