Java practice for self ( Parameter pass , static and non static , local , global )

java class file name ( printName.java): Run: on page R.B click - run on server

import java.util.Date;


public class printName {

   
   
   
   
    public void NameMore(String name,String nameNext){
          // This constructor has one parameter, name.
          System.out.println("Passed(value) Name is :" + name +" Passed(value) nameNext is : " + nameNext );
         
       }
   
   
   
    public void NameMoreRefPas(String name,String nameNext,String text,int number){
          // This constructor has one parameter, name.
          System.out.println("Passed(call by reference) Name k is :" + name +" Passed(call by reference ) nameNext  f is : " + nameNext  +" Passed ( direct vallue call) text  is :" + text  +" Call by Reference Numbers : " +number);
         
       }
   
   
   
    //************************************************************* 
   
    public void Name(String name){
          // This constructor has one parameter, name.
        System.out.println("Passed(value) Name is  op is double cotation kaniz:" + name );
       }

      public void Puppy(String name){
          // This constructor has one parameter, name.
         // System.out.println("Passed(value) Name is :" + name );
          System.out.println("Passed(call by reference) Name is :" + name );
       }
     
     private static  Date date = null;
       public static void main(String []args){

           String callByReference = null;
           String kaniz;
           kaniz = callByReference;
          
          // Following statement would create an object myPuppy
           printName myPuppy = new printName( );
           myPuppy.Puppy(kaniz);
          
           myPuppy.Name("kaniz. I am string value.it is direct value pass");
          
          
          
          
          
        //*********************************************************************  
        //String fatema = null;
        myPuppy.NameMore("kanizZZ","fatema");
       
       
    String referenceKaniz="ghrg";
        //String referenceKaniz = null;
            //String k = null;
           // String f = null;
         String k = referenceKaniz;
        String f = "fatema mmm";
        int i = 100;
        myPuppy.NameMoreRefPas(k,f,"kkkkk",i);
        date = new Date();   // This line is non static; But this non static can not call in static method. So I would this line static method.That means : above line  private static  Date date = null;
        System.out.println(date);
       
       }



    public Date getDate() {
        return date;
    }



    public void setDate(Date date) {
        this.date = date;
    }
   




   
   
   
   
}



Also follow it

import java.util.Date;


public class printName {

   
   
   
   
    public void NameMore(String name,String nameNext){
          // This constructor has one parameter, name.
          System.out.println("Passed(value) Name is :" + name +" Passed(value) nameNext is : " + nameNext );
         
       }
   
   
   
    public void NameMoreRefPas(String name,String nameNext,String text,int number){
          // This constructor has one parameter, name.
          System.out.println("Passed(call by reference) Name k is :" + name +" Passed(call by reference ) nameNext  f is : " + nameNext  +" Passed ( direct vallue call) text  is :" + text  +" Call by Reference Numbers : " +number);
          Name("rokon");
       }
   
   
   
    //************************************************************* 
   
    public void Name(String name){
          // This constructor has one parameter, name.
        System.out.println("Passed(value) Name is  op is double cotation kaniz:" + name );
       }

      public static  void Puppy(String name){
          // This constructor has one parameter, name.
         // System.out.println("Passed(value) Name is :" + name );
          System.out.println("Passed(call by reference) Name is :" + name );
       }
   
//     private static  Date date = null;
       public static void main(String []args){

           String callByReference = null;
           String kaniz;
           kaniz = callByReference;
           printName myPuppy = new printName( );
          // Following statement would create an object myPuppy
         
           Puppy(kaniz);
           myPuppy. Name("rokon");
         //  myPuppy.Name("kaniz. I am string value.it is direct value pass");
          
          
          
          
          
        //*********************************************************************  
        //String fatema = null;
        myPuppy.NameMore("kanizZZ","fatema");
       
       
    String referenceKaniz="ghrg";
        //String referenceKaniz = null;
            //String k = null;
           // String f = null;
         String k = referenceKaniz;
        String f = "fatema mmm";
        int i = 100;
        myPuppy.NameMoreRefPas(k,f,"kkkkk",i);
    Date date = new Date();   // This line is non static; But this non static can not call in static method. So I would this line static method.That means : above line  private static  Date date = null;
        System.out.println(date);
       
       }

private static Date date = new Date();

    public Date getDate() {
        return date;
    }



    public void setDate(Date date) {
        this.date = date;
    }
   




   
   
   
   
}



newTestList.java

public class newTestList {

   
public int sum(int a,int b){
    int s = 0;
    s = a+b;
      System.out.println(s);
     
      printName.Puppy("owares");
      printName bas = new printName();
      bas.Name("iftekhar");
      return s;
}
   

public int sum(int a,int b,int c){
    int s= 0;
    s = a+b+c;
      System.out.println(s);
      return s;
}




   public static void main(String[] args) {
   
       
        newTestList p = new newTestList();
        p.sum  (10,20);
        p.sum  (10,20,50);
   
    }
   
   
   
   
   
   
}

3rd Step static and non static
printName.java
import java.util.Date;


public class printName {

   
   
   
   
    public void NameMore(String name,String nameNext){
          // This constructor has one parameter, name.
          System.out.println("Passed(value) Name is :" + name +" Passed(value) nameNext is : " + nameNext );
         
       }
   
   
   
    public void NameMoreRefPas(String name,String nameNext,String text,int number){
          // This constructor has one parameter, name.
          System.out.println("Passed(call by reference) Name k is :" + name +" Passed(call by reference ) nameNext  f is : " + nameNext  +" Passed ( direct vallue call) text  is :" + text  +" Call by Reference Numbers : " +number);
          Name("rokon");
          Puppy("");
       }
   
   
   
    //************************************************************* 
   
    public void Name(String name){
          // This constructor has one parameter, name.
        System.out.println("Passed(value) Name is  op is double cotation kaniz:" + name );
       }
   

      public static  String Puppy(String name){
          // This constructor has one parameter, name.
         // System.out.println("Passed(value) Name is :" + name );
          System.out.println("Passed(call by reference) Name is :" + name );
          return "";
       }
 static void strat() {
   
 }
   
//     private static  Date date = null;
       public static void main(String []args){

           String callByReference = null;
           String kaniz;
           kaniz = callByReference;
           printName myPuppy = new printName( );
           strat();
          // Following statement would create an object myPuppy
          System.out.println(printName.Puppy("pop"));
          System.out.println(Puppy("popppp"));
        //  printName.
        //   Puppy(kaniz);
        //   myPuppy. Name("rokon");
         //  myPuppy.Name("kaniz. I am string value.it is direct value pass");
          
          
          
          
          
        //*********************************************************************  
        //String fatema = null;
        myPuppy.NameMore("kanizZZ","fatema");
       
       
    String referenceKaniz="ghrg";
        //String referenceKaniz = null;
            //String k = null;
           // String f = null;
         String k = referenceKaniz;
        String f = "fatema mmm";
        int i = 100;
        myPuppy.NameMoreRefPas(k,f,"kkkkk",i);
    Date date = new Date();   // This line is non static; But this non static can not call in static method. So I would this line static method.That means : above line  private static  Date date = null;
        //System.out.println(date);
       
       }

private static Date date = new Date();

    public Date getDate() {
        return date;
    }



    public void setDate(Date date) {
        this.date = date;
    }
   




   
   
   
   
}


newTestList.java




public class newTestList {

   
public int sum(int a,int b){
    int s = 0;
    s = a+b;
      System.out.println(s);
   
      printName.Puppy("owares");
      printName bas = new printName();
      bas.Name("iftekhar");
      bas.Puppy("");
      bas.getDate();
      return s;
}
   

public int sum(int a,int b,int c){
    int s= 0;
    s = a+b+c;
      System.out.println(s);
      return s;
}




   public static void main(String[] args) {
   
       
        newTestList p = new newTestList();
        p.sum  (10,20);
        p.sum  (10,20,50);
   
    }
   
   
   
   
   
   
}




** java action class run and see output(printName.java)

public class printName {

   
   
   
   
    public void NameMore(String name,String nameNext){
          // This constructor has one parameter, name.
          System.out.println("Passed(value) Name is :" + name +" Passed(value) nameNext is : " + nameNext );
         
       }
   
   
   
    public void NameMoreRefPas(String name,String nameNext,String text,int number){
          // This constructor has one parameter, name.
          System.out.println("Passed(call by reference) Name k is :" + name +" Passed(call by reference ) nameNext  f is : " + nameNext  +" Passed ( direct vallue call) text  is :" + text  +" Call by Reference Numbers : " +number);
         
       }
   
   
   
    //************************************************************* 
   
    public void Name(String name){
          // This constructor has one parameter, name.
        System.out.println("Passed(value) Name is  op is double cotation kaniz:" + name );
       }

      public void Puppy(String name){
          // This constructor has one parameter, name.
         // System.out.println("Passed(value) Name is :" + name );
          System.out.println("Passed(call by reference) Name is :" + name );
       }
       public static void main(String []args){

           String callByReference = null;
           String kaniz;
           kaniz = callByReference;
          
          // Following statement would create an object myPuppy
           printName myPuppy = new printName( );
           myPuppy.Puppy(kaniz);
          
           myPuppy.Name("kaniz. I am string value.it is direct value pass");
          
          
          
          
          
        //*********************************************************************  
        //String fatema = null;
        myPuppy.NameMore("kanizZZ","fatema");
       
       
    String referenceKaniz="ghrg";
        //String referenceKaniz = null;
            //String k = null;
           // String f = null;
         String k = referenceKaniz;
        String f = "fatema mmm";
        int i = 100;
        myPuppy.NameMoreRefPas(k,f,"kkkkk",i);
       
       
       }
   




   
   
   
   
}



output
Passed(call by reference) Name is :null
Passed(value) Name is  op is double cotation kaniz:kaniz. I am string value.it is direct value pass
Passed(value) Name is :kanizZZ Passed(value) nameNext is : fatema
Passed(call by reference) Name k is :ghrg Passed(call by reference ) nameNext  f is : fatema mmm Passed ( direct vallue call) text  is :kkkkk Call by Reference Numbers : 100



**************************************************************************

Write a method to print out a string “Name” multiple times
==========================================================
System.out.println("name" + " " + "name" + " "...).


1/  "name"

2/  + " "

3/  + "name"

4/  + " "



update printName.java
import java.util.Date;


public class printName {

   
   
   
   
    public void NameMore(String name,String nameNext){
          // This constructor has one parameter, name.
          System.out.println("Passed(value) Name is :" + name +" Passed(value) nameNext is : " + nameNext );
         
       }
   
   
   
    public void NameMoreRefPas(String name,String nameNext,String text,int number){
          // This constructor has one parameter, name.
          System.out.println("Passed(call by reference) Name k is :" + name +" Passed(call by reference ) nameNext  f is : " + nameNext  +" Passed ( direct vallue call) text  is :" + text  +" Call by Reference Numbers : " +number);
         
       }
   
   
   
    //************************************************************* 
   
    public void Name(String name){
          // This constructor has one parameter, name.
        System.out.println("Passed(value) Name is  op is double cotation kaniz:" + name );
       }

      public void Puppy(String name){
          // This constructor has one parameter, name.
         // System.out.println("Passed(value) Name is :" + name );
          System.out.println("Passed(call by reference) Name is :" + name );
       }
     
     private static  Date date = null;
       public static void main(String []args){

           String callByReference = null;
           String kaniz;
           kaniz = callByReference;
          
          // Following statement would create an object myPuppy
           printName myPuppy = new printName( );
           myPuppy.Puppy(kaniz);
          
           myPuppy.Name("kaniz. I am string value.it is direct value pass");
          
          
          
          
          
        //*********************************************************************  
        //String fatema = null;
        myPuppy.NameMore("kanizZZ","fatema");
       
       
    String referenceKaniz="ghrg";
        //String referenceKaniz = null;
            //String k = null;
           // String f = null;
         String k = referenceKaniz;
        String f = "fatema mmm";
        int i = 100;
        myPuppy.NameMoreRefPas(k,f,"kkkkk",i);
        date = new Date();   // This line is non static; But this non static can not call in static method. So I would this line static method.That means : above line  private static  Date date = null;
        System.out.println(date);
       
       }



    public Date getDate() {
        return date;
    }



    public void setDate(Date date) {
        this.date = date;
    }
   




   
   
   
   
}