aboutparameter.java

我自己学习JAVA过程中用键盘敲的代码

package jerryhfb;
public class AboutParameter{
	public static void main(String args[]){
		AboutParameter aa=new AboutParameter();
		
		
		TestedClass a=new TestedClass();
		System.out.println("begining:");
		System.out.println("attribute of a is "+a.getAttribute());
		
		System.out.println("Send a to math:");
		aa.changeObjectAttribute(a);
		System.out.println("attribute of a is "+a.getAttribute());
	}
		
		public void changeObjectAttribute(TestedClass x){
			System.out.println("at beginning attribute inside function is "+x.getAttribute());
			x.setAttribute(x.getAttribute()*10);
			System.out.println("attribute inside function is "+x.getAttribute());
		}
		
}