public class Account {
	
	int a;
	int b;
	//using the same name for class variables and parameters can cause issue without using 'this' keyword
	 public void setData(int a ,int b){
		  this.a = a;
		  this.b = b;
		 }
     // use different parameter names doesn't has this issue
	 /*public void setData(int c ,int d){
	  a = c;
	  b = d;
	 }*/
	 public void showData(){
	   System.out.println("Value of A ="+a);
	   System.out.println("Value of B ="+b);
	 }
	 public static void main(String args[]){
		   Account obj = new Account();
		   obj.setData(2,3);
		   obj.showData();
		 }
	
	

}