请问一个bean怎样随机抽取去100个放入一个新的bean呢?
public class ClassBean implements Serializable {
private String reason;
private List<Result> result;
public void setReason(String reason) {
this.reason = reason;
}
public String getReason() {
return reason;
}
public void setResult(List<Result> result) {
this.result = result;
}
public List<Result> getResult() {
return result;
}
public class Result implements Serializable{
private String id;
private String question;
private String answer;
private String item1;
private String item2;
private String item3;
private String item4;
private String explains;
private String url;
public void setId(String id) {
this.id = id;
}
public String getId() {
return id;
}
public void setQuestion(String question) {
this.question = question;
}
public String getQuestion() {
return question;
}
public void setAnswer(String answer) {
this.answer = answer;
}
public String getAnswer() {
return answer;
}
public void setItem1(String item1) {
this.item1 = item1;
}
public String getItem1() {
return item1;
}
public void setItem2(String item2) {
this.item2 = item2;
}
public String getItem2() {
return item2;
}
public void setItem3(String item3) {
this.item3 = item3;
}
public String getItem3() {
return item3;
}
public void setItem4(String item4) {
this.item4 = item4;
}
public String getItem4() {
return item4;
}
public void setExplains(String explains) {
this.explains = explains;
}
public String getExplains() {
return explains;
}
public void setUrl(String url) {
this.url = url;
}
public String getUrl() {
return url;
}
}
}
例如这样的bean,我想抽取随机Result中的100个,放到一个新的bean中,请问怎样写呢?