Java中的get/set方法

private String name;
private int age;
public String getName(){
return this .name;
}
public void setName(String name){
this name=name ;
}
public int getAge(){
return this.age;
}
public void getAge(int age){
if (age>120||age<0){
this .age=3;
}else {
this age=age
}
}