-------------------------java字符串的作业题字符串分解---------------
定义一个方法，传入字符串格式为(idcard:name:age:gender)的分割形式如
"120384722312901:kexin:20:1|
3219212131312:haotao:22:1|
120121121312:zhangmeiling:21:2"
将该字符串分解，并将属性赋给定义的Person类的对象上中并输出。
提示：创建的每个Person对象,每个对象有idcard、name、age和gender属性
publicclass Person {
private String idcard;
private String name;
private String age;
private String gender;
public String getIdcard(){
returnidcard;
}
publicvoidsetIdcard(String idcard) {
this.idcard = idcard;
}
public String getName() {
returnname;
}
publicvoidsetName(String name) {
this.name = name;
}
public String getAge() {
returnage;
}
publicvoidsetAge(String age) {
this.age = age;
}
public String getGender() {
returngender;
}
publicvoidsetGender(String gender) {
this.gender = gender;
}
@Override
public String toString() {
return"Person[idcard=" + idcard + ", name=" + name + ",age=" + age + ", gender=" + gender + "]";
}
}
-------------------------------------------
publicclass test12 {
publicstaticvoidmain(String[] args) {
//定义源字符串
//Stringstr = "120384722312901:kexin:20:1|3219212131312:haotao:22:1|120121121312:zhangmeiling:21:2";
Scannersc = newScanner(System.in);
//获得字符串
Stringstr = sc.nextLine();
//判断输入的字符串不是空
Person[]ps = getPersons(str);
//打印数组
printArr(ps);
}
publicstatic Person[]getPersons(String str) {
Person[] ps = null;
//判断输入的字符串不是空
if(str != null&& !("".equals(str.trim()))){
//根据|来做字符串的分割
String[]pstrs = str.split("\\|");
//创建一个person类的数组
//注意person类数组虽然有长度但是没有地址，初始值为null
//我们必须new Person的构造器
ps = new Person[pstrs.length];
//遍历字符串的数组
for (inti = 0; i < pstrs.length; i++) {
//获得每一个person的字符串数据
StringpersonStr = pstrs[i];
System.out.println(personStr);
//把子字符串按":"来做拆分
//下面的数组中储存的是学号，姓名，年龄，性别
String[]personAttr = personStr.split(":");
//创建person数组对象
ps[i] = new Person();
//给学号赋值
ps[i].setIdcard(personAttr[0]);
//给姓名赋值
ps[i].setName(personAttr[1]);
//给年龄赋值
ps[i].setAge(personAttr[2]);
//给性别赋值
ps[i].setGender(personAttr[3]);
}
}
returnps;
}
publicstaticvoidprintArr(Person[] ps) {
for (inti = 0; i < ps.length; i++) {
System.out.println(ps[i]);
}
}
}
结果：
120384722312901:kexin:20:1|3219212131312:haotao:22:1|120121121312:zhangmeiling:21:2
120384722312901:kexin:20:1
3219212131312:haotao:22:1
120121121312:zhangmeiling:21:2
Person[idcard=120384722312901, name=kexin, age=20, gender=1]
Person[idcard=3219212131312, name=haotao, age=22, gender=1]
Person[idcard=120121121312, name=zhangmeiling, age=21, gender=2]