java byref parameter

Take advantage of reflection. In use insideMethod.invoke (tool, null); The method inside the tool can be called1 Public classTool {2 3 Public voidA ()///Method A4 {5System.out.print ("TOOL.A () ...");6 }7 8 Public voidB ()//Method B9 {TenSystem.out.print ("tool.b () ..."); One } A } - - the - - Public classControl { - Public voidInvokeintflag) { +User User =NewUser (); - Try { + Switch(flag) { A Case0: atUser.use (To

public class Argstest{public static void Main (string[] args) {System.out.println (args.length), for (int i=0;iJavac Argstest.java Compile the program.Executes the Java argstest Run program.In addition, you can use scanner to get input from the keyboard in Java.Import Java.util.scanner;public class Scannertest{public static void Main (string[] args) {Scanner sc= new Scanner ( system.in); while (Sc.hasnext ()) {System.out.println ("keyboard input conte

/*Name:power by:stuartdate:2015.4.25*/classpasson{//Create Show method, put I in, output i+1 result Public voidShowinti) {i=i+1; System.out.println (i); }} Public classpasswaytest{ Public Static voidMain (String args[]) {//basic type Local Variables intSize =100; //print out values for local variablesSYSTEM.OUT.PRINTLN ("Local variable size is" +size); Passon PO=NewPasson (); //value when running the methodpo.show (size); }}Introduction to Java