The get and set method is used to modify the private(私有数据 )。
If a data has been setting as a private , then it cannt be called by other classes or changed.
So we need the get and set method to call the private data.
package test;public class Test7 { private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } public static void main(String[] args) { // TODO 自动生成的方法存根 Test7 test = new Test7(); test.setName("mike"); System.out.println(test.getName()); }}