Question

java怎么把一个字符串中的字符替换成别

Answer 1

import static java.lang.System.*;

public class Program {
	public static void main(String[] args) {
		String oldString = "HelloBrother How are you!";
		// 将oldString里的HelloBrother用Brother替换
		String newString = oldString.replace("HelloBrother","Brother");
		out.println(newString); // Brother How are you!
	}
}

Answer 2

例子
String input="123abc4k";
System.out.println(input.replace("123", "一二三"));

-供参考

Answer 3

String str="abc123abc";
str.replaceAll("abc","def");
str.replace('b','d');//替换单个

Answer 4

比如想把ABCabcefg替换成abcabcefg；可以使用"ABCabcefg".replace("ABC", "abc")

Answer 5

System.lang.String replace方法

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