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Java中如何正确输出英文双引号字符？

在Java中,如果你想输出包含英文双引号（）的字符串，你可以使用以下几种方法：

使用转义字符

在Java中,可以使用反斜杠（）作为转义字符来输出包含双引号的字符串，这是最常见的方法。

String output = "This is a "quoted" string."; System.out.println(output);

另一种方法是使用单引号包围字符串,然后在需要双引号的地方使用单引号。

String output = 'This is a "quoted" string.'; System.out.println(output);

你可以使用加号（）将字符串连接起来，从而在输出中包含双引号。

String output = "This is a " + "quoted" + " string."; System.out.println(output);

如果你在Java 7及以上版本，可以使用字符串字面量（triple quotes）来包含多行文本和特殊字符。

Java中如何正确输出英文双引号字符？第1张

Java中如何正确输出英文双引号字符？第2张

String output = """This is a "quoted" string with new line and other special characters like n and t.""" System.out.println(output);

你也可以使用String.format()方法来格式化字符串，从而在输出中包含双引号。

String output = String.format("This is a "quoted" string."); System.out.println(output);

如果你需要频繁地修改字符串,可以使用StringBuilder类。

Java中如何正确输出英文双引号字符？第3张

StringBuilder sb = new StringBuilder(); sb.append("This is a "quoted" string."); System.out.println(sb.toString());

方法	示例	输出
转义字符	"This is a \"quoted\" string."	This is a “quoted” string.
单引号	'This is a "quoted" string.'	This is a “quoted” string.
字符串连接	"This is a " + "quoted" + " string."	This is a “quoted” string.
字符串字面量	`”””This is a “quoted” string with new line
and other special characters like n and t.”””`	This is a “quoted” string with new line
and other special characters like n and t.
String.format()	String.format("This is a \"quoted\" string.")	This is a “quoted” string.
StringBuilder	StringBuilder sb = new StringBuilder(); sb.append("This is a \"quoted\" string."); System.out.println(sb.toString());	This is a “quoted” string.