通过将所有字段设为private
,可以将类设为只写。 只写类将只有 setter
方法,用于设置从 main
方法传递给私有字段的值。 我们无法读取该类的属性,因为该类中没有 getter
方法。 考虑以下示例:
//A Java class which has only setter methods.
public class Student {
//private data member
private String college;
//getter method for college
public void setCollege(String college) {
this.college = college;
}
}