java final和static關鍵字學習

package day12_1;

public class FinalTest {

	final int i1 = 9;
	static final int i2 = 99;
	public static final int i3 = 39;
	
	final int i4 = (int) (Math.random()*20);
	static final int i5 = (int) (Math.random()*20);
	
	Value v1 = new Value();
	final Value v2 = new Value();
	static final Value v3 = new Value();
	
	final int[] a = {1,2,3};
	
	public void print(String id) {
		System.out.println(id+":"+"i4="+i4+",i5="+i5);
	}
	public static void main(String[] args) {
		FinalTest ft1 = new FinalTest();
		ft1.v2.i++;
		ft1.v1 = new Value();
		ft1.print("ft1");
		System.out.println("---");
		FinalTest ft2 = new FinalTest();
		ft1.print("ft1");
		ft2.print("ft2");
	}

}

class Value {
	int i = 1;
}

ft1:i4=18,i5=14
---
ft1:i4=18,i5=14

ft2:i4=13,i5=14

i5都是相同的