I like the idea from @Sebastiaan van den Broek but would prefer not to use the library and therefore look up its implementation: // Trim ... ... <看更多>

The trim () method in Java String is a built-in function that eliminates leading and trailing spaces. The Unicode value of space character is ... ... <看更多>

java 中trim 方法的实现源代码如下： 12345678910111213public String trim() { int len = value.length; int st = 0; char[] val = value; ... ... <看更多>

You have so much opinions in the java community it would be ... trim: trim a non null string (like you suggested); convertion: nonNullValue. ... <看更多>

Use substring method of String class. Returns a new String that begins with the character at the specified zero-based startIndex and extends ... ... <看更多>