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如何检查按键是否可打印？

[英]How to check a pressed key is printable or not?

原文 2015-11-26 17:18:07 9 1 java/ awt/ keyevent

java - 如何在java的按键事件中检查按下的键是否可打印？

1 个解决方案

Check this topic .检查此主题。

   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;
    }

检查是否在控制台中按下了某个键 - Check if a key is pressed in console

如何检查按下的键是否是Java KeyListener中的箭头键？ - How to check if the key pressed was an arrow key in Java KeyListener?

使用 HashSet 检查是否按下了某个键 - Using HashSet to check if a key is pressed

如何在按键事件中检查JTtextField中的字符串数字验证器 - How to check string numeric validator in JTtextField in key pressed event

如何检查扫描仪中是否已按Enter键？ - How do I check if the enter key has been pressed in a Scanner?

如何检查是否按下了大写锁定键？ - How do I check if the caps lock key is pressed?

如何检查按键是否已被多次按下 - How to check if a key has been pressed numerous times

如何检查是否按下了左尖括号键？ - How do I check if the left angle bracket key is pressed?

如何检查在java中单击事件时是否按下了键 - How to check if key pressed when clicked event in java

检查android中是否按了后退键？ - Check if back key was pressed in android?

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相关问题 检查是否在控制台中按下了某个键 - Check if a key is pressed in console 如何检查按下的键是否是Java KeyListener中的箭头键？ - How to check if the key pressed was an arrow key in Java KeyListener? 使用 HashSet 检查是否按下了某个键 - Using HashSet to check if a key is pressed 如何在按键事件中检查JTtextField中的字符串数字验证器 - How to check string numeric validator in JTtextField in key pressed event 如何检查扫描仪中是否已按Enter键？ - How do I check if the enter key has been pressed in a Scanner? 如何检查是否按下了大写锁定键？ - How do I check if the caps lock key is pressed? 如何检查按键是否已被多次按下 - How to check if a key has been pressed numerous times 如何检查是否按下了左尖括号键？ - How do I check if the left angle bracket key is pressed? 如何检查在java中单击事件时是否按下了键 - How to check if key pressed when clicked event in java 检查android中是否按了后退键？ - Check if back key was pressed in android?

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