Java 是否有子字符串（开始，长度）函数？
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Is there a substring(start, length) function?
提问by James Meade
I am trying to use a similar method to C#'s string.SubString(int start, int length).
我正在尝试使用与 C# 类似的方法string.SubString(int start, int length)。
But the substring function in Java is string.substring(int start, int end).
但是 Java 中的 substring 函数是string.substring(int start, int end).
I want to be able to pass a start position and a length to the substring function.
我希望能够将起始位置和长度传递给 substring 函数。
Can anyone help me to solve this issue?
谁能帮我解决这个问题？
采纳答案by Danstahr
It could be something like
它可能是这样的
String mySubString(String myString, int start, int length) {
return myString.substring(start, Math.min(start + length, myString.length()));
}
回答by tagtraeumer
yes
是的
http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#substring(int, int)
http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#substring(int, int)
public String substring(int beginIndex, int endIndex)
公共字符串子字符串（int beginIndex，int endIndex）
you just need to calculate a little in order to get the endIndex.
您只需要稍微计算一下即可获得 endIndex。
回答by Anirudha
The closest you can get is by using the String's constructor
最接近的是使用 String 的构造函数
new String(input.getBytes(),start,length);
