java中this关键字的使用(code)

/**
 * this关键字的使用
 * @author Administrator
 *
 */
public class KeyWordThisUsage {
private String name;
private int age;

public KeyWordThisUsage() {
System.out.println("调用了一个无参的构造方法！");
}

//定义了一个有参数的构造方法
public KeyWordThisUsage(String name,int age){
this();
this.name = name;
this.age = age;
}

public static void main(String[] args) {
KeyWordThisUsage usage = new KeyWordThisUsage("Jasica", 19);
System.out.println("name = " + usage.name + " age =  " + usage.age);
}
}