public static void main(String[] args) { x=45; y=3.14f; z=3.1415; t= true ; c= '6' ; System. out .println( " 变量的值是: " ); System. out .println( "x 的值是: " +x); System. out .println( "y 的值是: " +y); System. out .println( "z 的值是: " +z); System...
public static void main(String args[]) Circle c=new Circle(50,50,10) System.out.prinrln(c.toString()) c.setPoint(100,100) c.setRadius System.out.println(c.toString()) 1:父类的public Point(){}构造方法为什么不能省略,它是初始化谁的? 2:父类的public Point(int xx,int yy){setPoint(...
public static void main(String args[])Question:How you can force the garbage collection?Answer:Garbage collection automatic process and can't be forced.Question:What is OOPS?Answer:OOP is the common abbreviation for Object-Oriented Programming....
public class Test { static short index; static int age; public static void setData(long n) { index = n; } public static void main(String args[]) { setData(9); System.out.println("index = " + index + "; age= " + age); } } A. index = 9;age = 0 B. index = ...
public static void main( String[] args ) { ST_Employee se1 = new ST_Employee(); se1.eid = 104; se1.name = "Abhijit"; se1.show(); } } Q. Why a non-static variable cannot be referenced from a static context ? This is because non-static variables are related with instance of ...
("num2:"+num2);} public Son(int i,int j){ super(i); num2=j; System.out.println( "num1:"+num1+",num2:"+num2); } } public class Demo{ public static void main(String []args){ Father father=new Father(); Son son=new Son(); Son son1=new Son(20,30); } } 运行结果...
() public class J_Test { public ststic int mb_method( ) { try { return 1; } catch(Throwable e) { return 2; } finally { return 3; } } public static void main(String args[ ]) { System.out.println(mb_method( )); } } A、 程序可以通过编译并正常运行,结果输出“1” B、 程序...
public class CloneMain { public static void main(String[] args) throws CloneNotSupportedException { Person cc = new Person(); Score s1 = new Score(); s1.setCategory("语文"); s1.setFraction(90); Score s2 = new Score(); s2.setCategory("数学"); ...
阅读下列代码: import java.io. *; public class ExceptionCatch{ public static void main(String args[]){ try{ FileInputStream fis=new FileInputStream(“text”); System. out. println(content of text is A:); } catch(FileNotFoundException e){ Sys..
public class Program { public void static main(String[] args) { System.out.println("hi"); } } this gives an error while public class Program { public static void main(String[] args) { System.out.println("hi"); } } this works perfectly fine so does that means the order of public ...