作业帮if(field.getType() == String.class){ } 为什么必须要有这句?private static void changeStringValue(Object obj) throws Exception {// TODO Auto-generated method stubField[] fields = obj.getClass().getFields();for (Field field :fields) {if(field.g
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/17 07:57:54
![if(field.getType() == String.class){ } 为什么必须要有这句?private static void changeStringValue(Object obj) throws Exception {// TODO Auto-generated method stubField[] fields = obj.getClass().getFields();for (Field field :fields) {if(field.g](/uploads/image/z/13941160-16-0.jpg?t=if%28field.getType%28%29+%3D%3D+String.class%29%7B+%7D+%E4%B8%BA%E4%BB%80%E4%B9%88%E5%BF%85%E9%A1%BB%E8%A6%81%E6%9C%89%E8%BF%99%E5%8F%A5%3Fprivate+static+void+changeStringValue%28Object+obj%29+throws+Exception+%7B%2F%2F+TODO+Auto-generated+method+stubField%5B%5D+fields+%3D+obj.getClass%28%29.getFields%28%29%3Bfor+%28Field+field+%3Afields%29+%7Bif%28field.g)
if(field.getType() == String.class){ } 为什么必须要有这句?private static void changeStringValue(Object obj) throws Exception {// TODO Auto-generated method stubField[] fields = obj.getClass().getFields();for (Field field :fields) {if(field.g
if(field.getType() == String.class){ } 为什么必须要有这句?
private static void changeStringValue(Object obj) throws Exception {
// TODO Auto-generated method stub
Field[] fields = obj.getClass().getFields();
for (Field field :fields) {
if(field.getType() == String.class){
String oldValue = (String) field.get(obj);
String newValue = oldValue.replace('b','a');
field.set(obj,newValue);
}
}
}
if(field.getType() == String.class){ } 为什么必须要有这句?private static void changeStringValue(Object obj) throws Exception {// TODO Auto-generated method stubField[] fields = obj.getClass().getFields();for (Field field :fields) {if(field.g
其实就是判断一下一个类中的属性的类型是不是String