대입문

package com.liuc.test;

public class Assignment {
	
	public static void main(String[] args) {
		Tank tank1=new Tank();
		Tank tank2=new Tank();
		tank1.level=9;
		tank2.level=47;
		
		System.out.println("t1.level"+tank1.level+",t2.level"+tank2.level);
		
		tank1=tank2;
		System.out.println("t1.level"+tank1.level+",t2.level"+tank2.level);
		
		tank1.level=27;
		System.out.println("t1.level"+tank1.level+",t2.level"+tank2.level);
	}

}

class Tank{
	int level;
}

결과:
t1.level9,t2.level47
t1.level47,t2.level47
t1.level27,t2.level27