java - 如何检查按下的键是否可打印？

Question

如何在 java 的按键事件中检查按下的键是否可打印？

Answer 1

检查 this topic .

   public boolean isPrintableChar( char c ) {
        Character.UnicodeBlock block = Character.UnicodeBlock.of( c );
        return (!Character.isISOControl(c)) &&
                c != KeyEvent.CHAR_UNDEFINED &&
                block != null &&
                block != Character.UnicodeBlock.SPECIALS;
    }