e435. compiling a pattern with multiple flags.txt

这里面包含了一百多个JAVA源文件

Multiple flags must be combined using the or operator (|). 
    CharSequence inputStr = "Abc\ndef";
    String patternStr = "abc$";
    
    // Compile with multiline and case-insensitive enabled
    Pattern pattern = Pattern.compile(patternStr,
        Pattern.MULTILINE | Pattern.CASE_INSENSITIVE);
    Matcher matcher = pattern.matcher(inputStr);
    boolean matchFound = matcher.find();    // true