·呼叫屬性(程式碼示例):

public class thisDemo01 {
	public static void main(String[] args) throws Exception {
		BlueMoon bm=new BlueMoon("渣渣輝", 100);
		System.out.println(bm.getInfo());
	}
}

class BlueMoon {
	private String name;
	private int level;

	public BlueMoon(String name, int level) {
		this.name = name;
		this.level = level;
	}

	public String getInfo() {
		return "大家好!我是" + this.name + "，我是貪玩藍月的戰士，等級：" + this.level;
	}
}
 

 |—呼叫普通方法:

public class thisDemo01 {
	public static void main(String[] args) throws Exception {
		BlueMoon bm = new BlueMoon("渣渣輝", 100);
		System.out.println(bm.getInfo());
	}
}

class BlueMoon {
	private String name;
	private int level;

	public BlueMoon(String name, int level) {
		this.name = name;
		this.level = level;
	}

	public void print() {
		System.out.println("************************");
	}

	public String getInfo() {
		this.print();//呼叫普通方法
		return "大家好!我是" + this.name + "，我是貪玩藍月的戰士，等級：" + this.level;
	}
}
 

public class thisDemo01 {
	public static void main(String[] args) throws Exception {
		BlueMoon bm1 = new BlueMoon();
		BlueMoon bm2 = new BlueMoon("古天樂");
		BlueMoon bm3 = new BlueMoon("小志傳奇", "陳赫", "法師");

		System.out.println(bm1.getInfo());
		System.out.println(bm2.getInfo());
		System.out.println(bm3.getInfo());
	}
}

class BlueMoon {
	private String game;
	private String name;
	private String title;
	private int level;

	public BlueMoon() {
		this("貪玩藍月", "無名氏", "未定", 0);
	}

	public BlueMoon(String name) {
		this("貪玩藍月", name, "劍士", 90);
	}

	public BlueMoon(String game, String name) {
		this(game, name, "戰士", 100);
	}

	public BlueMoon(String game, String name, String title) {
		this();
		this.game = game;
		this.name = name;
		this.title = title;
	}

	public BlueMoon(String game, String name, String title, int level) {
		this.game = game;
		this.name = name;
		this.title = title;
		this.level = level;
	}

	public String getInfo() {
		return "歡迎來到" + this.game + "！我是" + this.name + ",職業:" + this.title + ",等級:" + this.level + "級";
	}
}
 

·當前物件呼叫:

class BlueMoon {
	public void print() {
		//哪個物件呼叫了print()方法,this就自動與此物件指向同一塊記憶體地址
		System.out.println("this=" + this);//this 就是當前呼叫物件
	}
}

public class thisDemo02 {
	public static void main(String[] args) throws Exception {
		BlueMoon bm = new BlueMoon();
		BlueMoon bm2 = new BlueMoon();
		System.out.println("bm=" + bm);
		bm.print();
		System.out.println("---------------------");
		System.out.println("bm2=" + bm2);
		bm.print();

	}
}