Learning notes--java String Operations Common methods

1. Create a string

The most common use of the string class is the construction method: String S=new string ("ABCD");

You can also use the string constructor of the StringBuilder class j2se5.0 added: StringBuilder builder=new StringBuilder ("ABCD");

The output is converted with ToString.

2. Basic operation: Length (), IndexOf (), LastindexOf (), charAt (), substring (int begin,int end), de-trailing space trim (), replace (char Old,char New),

StartsWith (), Equals, equalsignorecase (), comparing CompareTo (), toLowerCase (), toUpperCase (), Split in dictionary order (String sign,int Limit), formatted format () to view the format table,

Regular Expressions match matches (), methods of the StringBuilder class append (), insert (int offset,arg), and so on.

Learning notes--java String Operations Common methods