[英]How to verify the user input in a textfield to compare it with a variable?
I want to verify the user input (number) in a textfield
that if it's bigger than 9
or not. 我想验证
textfield
中的用户输入(数字)是否大于9
。 Note that the number from 1
to 9
. 请注意,数字从
1
到9
。 if it's bigger than 9
I want to show a jOptionPane
some code i have traied: 如果它大于
9
我想向jOptionPane
显示一些我已经讲过的代码:
else
if(jTextField1.contains()){ // want to compare it if it's bigger than 9 or not
jOptionPane1.showMessageDialog(this,"Please enter the number of the tab"); // wich means from 1 to 9
}
So how to do that with java? 那么如何用Java做到这一点呢? Thanks in advance :)
提前致谢 :)
You can directly do it with help of js using jQuery just give id to our text field and add a script tag with the following code : 您可以直接在jQuery的帮助下使用jQuery做到这一点,只需将id赋予我们的文本字段并使用以下代码添加脚本标签即可:
num = $("#yourId").val();
if(num>9){
alert("your message");
}
or any thing else you want to achieve 或您想要实现的任何其他目的
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