JAVA题目不会做,高手帮帮忙丫

class Person
{
private String name;
private int age;
private int height;
private String sex;

public void setName(String name){
this.name=name;
}
public String getName(){
return this.name;
}
public void setAge(int age){
this.age=age;
}
public int getAge(){
return this.age;
}
public void setHeight(int height){
this.height=height;
}
public int getHeight(){
return this.height;
}
public void setSex(String sex){
this.sex=sex;
}
public String getSex(){
return this.sex;
}
}

public class PersonTest
{
public static void main(String[] args)
{
Person p = new Person();
p.setName("zhangsan");
p.setAge(18);
p.setHeight(170);
p.setSex("男");

System.out.println("姓名==="+p.getName());
System.out.println("年龄==="+p.getAge());
System.out.println("身高==="+p.getHeight()+"cm");
System.out.println("性别==="+p.getSex());
}
}

//实测OK

public class Person {

private String name;
private int age;
private float h;
private String sex;

public Person(){}

public void setName(String name){this.name=name;}
public String getName(){return this.name;}
public void setAge(int age){this.age=age;}
public int getAge(){return this.age;}
public void setSex(String s){this.sex=s;}
public String getSex(){return this.sex;}
public void setHeight(float a){this.h=a;}
public float getHeight(){return this.h;}

public void printInfo(){
System.out.println("我叫 "+name+" 今年 "+age+" 岁，我是 "+sex+"，我的身高是 "+h+" （cm)");
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Person p1 = new Person();
p1.setName("abc");
p1.setAge(22);
p1.setSex("女性");
p1.setHeight(177);
p1.printInfo();
}

}

class Person{
private String Name;
private int Age;
private float Height;
private String Sex;
Person(){}
public void setName(String aName){
Name=aName;}
public void setAge(int aAge){
Age=aAge;}
public void setHeight(float aHeight){
Height=aHeight;}
public void setSex(String aSex){
Sex=aSex;}
public String getName(){
return Name;}
public int getAge(){
return Age;}
public float getHeight(){
return Height;}
public String getSex(){
return Sex;}
public static void main(String[] args){
Person p1=new Person();
Person p2=new Person();
p1.setName("张三");
p1.setAge(18);
p1.setHeight(178);
p1.setSex("男");
p2.setName(" 李四");
p2.setAge(19);
p2.setHeight(188);
p2.setSex("女");
System.out.println("姓名："+p1.getName()+" 年龄："+p1.getAge()+" 身高："+p1.getHeight()+" 性别："+p1.getSex());
System.out.println("姓名："+p2.getName()+" 年龄："+p2.getAge()+" 身高："+p2.getHeight()+" 性别："+p2.getSex());
}}