Question

在java中截取银行卡号倒数第三位到倒数第十位加替换为*******

Answer 1

String bankAccount="123456789011121314";
int length=bankAccount.length();
String str=bankAccount.substring(0, length-11)+"*******"+bankAccount.substring(length-2);
System.out.println(str);

Answer 2

public String replaceCard(String src){
StringBuilder resultBuilder = new StringBuilder();
String part1 = src.subString(0,src.length - 2);
String part2 = src.subString(src.length - 10,src.length);
resultBuilder.append(part1);
resultBuilder.append("**********");
resultBuilder.append(part2);
return resultBuilder.toString();

}

Answer 3

String cardNo = "1234567890123456";
String startNo = cardNo.substring(0,2);
String endNo = cardNo.substring(10);
System.out.println(startNo+"*******"+endNo);

Answer 4

substring先截取，replace替换