局部变量与全局变量的演示

package com.cc.bsp.persistence.core.impl.hibernate.jpa;

public class Test {
	
	public int b = 80;
	
	public int test(){
		
		System.out.println("input init arg b:" + b);
		
		b = b + 40; 
		
		System.out.println("result init arg b:" + b);
		
		return b;
	}
	
	public int test(int a){
		
		System.out.println("input arg :" + a);
		
		a = a + 9;
		
		System.out.println("result :" + a);
		
		return a;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
	
		Test t = new Test();
		
		System.out.println("------------局部变量--------------------");
		int a  = 100;
		int result  = t.test(a);

		System.out.println("return result :" + result);
		
		System.out.println("final  :" + a);
		
		System.out.println("------------全局变量--------------------");
		int result1 = t.test();
		System.out.println("return result :" + result1);
		System.out.println("final  :" + t.b);
		
	}

}

 

 

------------局部变量--------------------
input arg :100
result :109
return result :109
final  :100
------------全局变量--------------------
input init arg b:80
result init arg b:120
return result :120
final  :120