java中為按鈕添加圖片

• In Java, everything written in double-quotes is considered a string and the text written in double-quotes is display as it is.

  在Java中， 雙引號中的所有內容均視為字符串，而雙引號中的文本按原樣顯示。

• Suppose, if we want to add double quotes to a string then we need [\"] escape sequence to escape quotes.

  假設，如果要在字符串中添加雙引號，則需要[ \“ ]轉義序列來轉義引號。

• Let us suppose if we have a string "Preeti" and simply it will display like this preeti and if we want to add double quotes to string (i.e. display like "preeti" ) then we will write a statement like this "\"Preeti\"".

  讓我們假設，如果我們有一個字符串“ Preeti”，并且簡單地將顯示為這樣的preeti，并且如果我們想在字符串中添加雙引號(例如，顯示為“ preeti” )，那么我們將編寫一個這樣的語句： “ \” Preeti \ ” 。

We will understand this thing with the help of an Example...

我們將借助“示例”來理解這件事。

Example:

例：

public class AddQuotesToString {public static void main(String[] args) {// Create a string named str1 with value Java // and display like this Java.String str1 = "Java";// Create a string named str2 with value OOPS // and display like this Java "OOPS".// For adding double quotes to OOPS // then we need or add \" escape sequence to escape quotes // around both side string.String str2 = " \" OOPS \" ";System.out.println("Display String without quotes " + " " + str1);System.out.println("Display String with quotes " + " " + str2);} }

Output

輸出量

D:\Programs>javac AddQuotesToString.javaD:\Programs>java AddQuotesToString Display String without quotes Java Display String with quotes " OOPS "

翻譯自: https://www.includehelp.com/java/how-to-add-double-quotes-to-a-string-in-java.aspx

java中為按鈕添加圖片

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