在 netbeans 中将控制台应用程序与 GUI 结合起来
我想将控制台应用程序与 netbeans 中的 GUI 结合起来。我尝试使用 jButton 来实现。我想将控制台应用程序的输出放入 jTextArea 中。
控制台应用程序中有一个名为 private static void printBytes(byte[] data, String name) 的函数。调用该函数时必须执行以下操作。
printBytes(activeKey,"After permuted choice 1 table- Active key:");
为此，我必须将第二个参数传递给文本框。我创建了一个名为 ta 的 jTextArea 对象，并给出了
printBytes(activeKey,ta.append("After permuted choice 1 table- Active key:"));
一个名为
无法将 void 类型转换为字符串。
然后我尝试如下。
String a="After permuted choice 1 table- Active key:"
printBytes(activeKey,ta.getText(a));
它也不起作用。 有人请告诉我该怎么做。我想做的是以某种方式将我的控制台应用程序连接到 GUI 并在 GUI 上获取输出。
I want to combine a console application with a GUI in netbeans.I tried to do it using a jButton. I want to get the output of the console application into a jTextArea.
There is a function called private static void printBytes(byte[] data, String name) in the console application. When calling that function have to do as follow.
printBytes(activeKey,"After permuted choice 1 table- Active key:");
For this I have to pass the 2nd parameter to the text box. I created an object of the jTextArea called ta and gave
printBytes(activeKey,ta.append("After permuted choice 1 table- Active key:"));
It gave an error called
Cannot convert void type into string.
Then I tried as follow.
String a="After permuted choice 1 table- Active key:"
printBytes(activeKey,ta.getText(a));
It also didn't work.
Someone please tell me how to do it.What i want to do is somehow connect my console application to GUI and getting the output on the GUI.
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Cannot conversion void type into string.告诉您到底出了什么问题。您调用的方法 JTextArea#append(...) 不返回字符串，而是将文本附加到其显示中，并且不返回任何内容，void，因此您无法将方法的结果（没有）传递到您的 printBytes 方法需要一个字符串。您可以通过将标准输出重定向到 JTextArea 将控制台应用程序“连接”到 GUI，但您最好创建一个 GUI 应用程序，而不是尝试将控制台连接到 GUI开始使用非 GUI 模型，该模型保存其逻辑并编写为可以在您选择的大多数 UI、控制台、GUI 或其他（如果存在）中使用。
Cannot convert void type into string.tells you exactly what is wrong. The method you're calling, JTextArea#append(...) doesn't return a String but rather appends text to its display, and returns nothing, void, so you can't pass the method's result (there is none) into your printBytes method which expects a String.You can "connect" a console app to a GUI by re-directing the standard output into the JTextArea, but again rather than trying to connect a console to a GUI, you're likely better to create a GUI app that is GUI from the get-go with a non-GUI model that holds its logic and is written so that it can be used in most any UI you choose, console, GUI or other (if it exists).