What to do How to do it
Create a new class calledMyNewClass. 
package test;  
public class MyNewClass {  }
Create a new attribute (instance variable) called var1 of type String in the MyNewClass class 
package test;  
public class MyNewClass {   
private String var1;
 }
Create a Constructor for your MyNewClass class which has a String parameter and assigns the value of it to the var1 instance variable. 
package test;  
public class MyNewClass {   
private String var1;    
public MyNewClass(String para1) 
{     
var1 = para1;  // or this.var1= para1;   
}
 }
Create a new method calleddoSomeThing in your class which does not return a value and has no parameters 
package test;  public class MyNewClass
 {  
   private String var1;    
   public MyNewClass(String para1) {  
   var1 = para1;     // or this.var1= para1;  
 }    
public void doSomeThing() {  
  } 
 }
Create a new method calleddoSomeThing2 in your class which does not return a value and has two parameters, a int and a Person 
package test;  public class MyNewClass {  
 private String var1;   


 public MyNewClass(String para1) { 
    var1 = para1;     // or this.var1= para1;  
 }   

 public void doSomeThing() {   
 }    
 
  public void doSomeThing2(int a, Person person) {
    } 
 }
Create a new method calleddoSomeThing2 in your class which returns an int value and has three parameters, two Strings and a Person 
package test;  
public class MyNewClass {   
private String var1;    
public MyNewClass(String para1) {     
var1 = para1;     // or this.var1= para1;   
}    
public void doSomeThing() {    

}    

public void doSomeThing2(int a, Person person) {   
 }   
 public int doSomeThing3(String a, String b, Person person) {     
return 5; // Any value will do for this example  
 }  
}
Create a class called MyOtherClasswith two instance variables. One will store a String, the other will store a Dog. Create getter and setter for these variables. 
package test;
  public class MyOtherClass {   
String myvalue;   
Dog dog; 
   public String getMyvalue() { 
    return myvalue;  
 }  
  public void setMyvalue(String myvalue) {     
this.myvalue = myvalue;  
 } 


  public Dog getDog() {     
return dog;   
}    


public void setDog(Dog dog) {     
this.dog = dog;  
 }
}