鍦↗ava涓紝toString()鏂规硶鏄竴涓畾涔夊湪Object绫讳腑鐨勬柟娉曪紝瀹冭繑鍥炰竴涓〃绀鸿瀵硅薄鐨勫瓧绗︿覆銆?/p>

瑕佷娇鐢╰oString()鏂规硶锛屽彧闇€瑕佸湪瀵硅薄涓婅皟鐢ㄨ鏂规硶鍗冲彲銆備緥濡傦細

public class MyClass {
private String name;
private int age;
public MyClass(String name, int age) {
this.name = name;
this.age = age;
}
public String toString() {
return "MyClass [name=" + name + ", age=" + age + "]";
}
public static void main(String[] args) {
MyClass obj = new MyClass("John", 25);
System.out.println(obj.toString());  // 鎴栬€呯洿鎺ヤ娇鐢?System.out.println(obj);
}
}

鍦ㄤ笂闈㈢殑渚嬪瓙涓紝鎴戜滑閲嶅啓浜哅yClass绫荤殑toString()鏂规硶锛屽皢瀵硅薄鐨勫睘鎬т互瀛楃涓茬殑褰㈠紡杩斿洖銆傜劧鍚庡湪main鏂规硶涓紝鎴戜滑鍒涘缓浜嗕竴涓狹yClass瀵硅薄obj锛屽苟璋冪敤浜嗗畠鐨則oString()鏂规硶锛屽苟灏嗚繑鍥炵粨鏋滄墦鍗板湪鎺у埗鍙颁笂銆?/p>

璇锋敞鎰忥紝褰撶洿鎺ヤ娇鐢⊿ystem.out.println(obj)鎵撳嵃瀵硅薄鏃讹紝瀹為檯涓婃槸璋冪敤浜唎bj.toString()鏂规硶銆傚洜姝わ紝鎴戜滑涔熷彲浠ョ洿鎺ュ啓鎴怱ystem.out.println(obj)鏉ヨ緭鍑哄璞＄殑瀛楃涓茶〃绀恒€?/p>