java中占位符怎么用
答案:3 悬赏:60
解决时间 2021-03-13 21:16
- 提问者网友：江山如画
- 2021-03-13 10:19
java中占位符怎么用
最佳答案
- 二级知识专家网友：woshuo
- 2021-03-13 10:37
String stringFormat = "lexical error at position %s, encountered %s, expected %s ";
String messageFormat ="lexical error at position {0}, encountered {1}, expected {2}";
System.out.println(String.format(stringFormat, 123, 100, 456));
System.out.println(MessageFormat.format(messageFormat, new Date(), 100, 456));
String messageFormat ="lexical error at position {0}, encountered {1}, expected {2}";
System.out.println(String.format(stringFormat, 123, 100, 456));
System.out.println(MessageFormat.format(messageFormat, new Date(), 100, 456));
全部回答
- 1楼网友：木子香沫兮
- 2021-03-13 11:46
void main(String[]args){
double Num=2.3456;
Num=(int)Num*100;
Num=Num/100;
System.out.println(Num);
}
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- 2楼网友：走，耍流氓去
- 2021-03-13 10:50
string sql= "select * form emp where ename=?";
preparedstatement ps = connect.preparedstatement(sql);
ps.setstring(1,'king');
resultset rs = ps.executequery();
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