Question

我非常肯定，命名对象不会像

那样改变它

A a = new A();
A b = new A();

第二个对象应具有与第一个对象完全相同的属性。所以这是我的编码问题

public class Animation {

public static final Animation MOROTE_SEOI_NAGE = new Animation(JudokaComponent.MOROTE1, JudokaComponent.MOROTE2, JudokaComponent.MOROTE3);
public static final Animation morote_seoi_nage = new Animation(JudokaComponent.judokaStanding1, JudokaComponent.judokaStanding2, JudokaComponent.judokaStanding1);

public static final Animation UCHI_MATA = new Animation(JudokaComponent.uchiMata1, JudokaComponent.uchiMata2, JudokaComponent.uchiMata3);
public static final Animation uchi_mata = new Animation(JudokaComponent.judokaStanding1, JudokaComponent.judokaStanding2, JudokaComponent.judokaStanding1);

public static final Animation O_SOTO_GARI = new Animation(JudokaComponent.oSotoGari1, JudokaComponent.oSotoGari2, JudokaComponent.oSotoGari3);
public static final Animation Lel = new Animation(JudokaComponent.oSotoGari1, JudokaComponent.oSotoGari2, JudokaComponent.oSotoGari3);
public static final Animation o_soto_gari = new Animation(JudokaComponent.judokaStanding1, JudokaComponent.judokaStanding2, JudokaComponent.judokaStanding1);


public int ID;
public BufferedImage[] SPRITES;

public Animation(BufferedImage step1, BufferedImage step2, BufferedImage step3){
    if(step1 == null || step2 == null || step3 == null) {
        if(step1 == null) System.err.print("Step 1 was NPE. Address: " + this + "\n");
        if(step2 == null) System.err.print("Step 2 was NPE. Address: " + this + "\n");
        if(step3 == null) System.err.print("Step 3 was NPE. Address: " + this + "\n");
        throw new RuntimeException("Animation NEP");
    }
    BufferedImage[] SPRITES = {step1, step2, step3};
    this.SPRITES = SPRITES;
}


}

在这里更具体的theese线：

public static final Animation O_SOTO_GARI = new Animation(JudokaComponent.oSotoGari1, JudokaComponent.oSotoGari2, JudokaComponent.oSotoGari3);
public static final Animation Lel = new Animation(JudokaComponent.oSotoGari1, JudokaComponent.oSotoGari2, JudokaComponent.oSotoGari3);

对我而言，它们看起来像是完全相同的对象，但名称不同。当我运行没有O_SOTO_GARI对象的代码时，它按预期工作，至少是启动。但是，一旦我取消评论O_SOTO GARI对象的创建，我就会在游戏开始之前得到这个输出：

Step 1 was NPE. Address: com.kruhlmann.judoka.graphics.Animation@184ec44
Step 2 was NPE. Address: com.kruhlmann.judoka.graphics.Animation@184ec44
Step 3 was NPE. Address: com.kruhlmann.judoka.graphics.Animation@184ec44
Exception in thread "main" java.lang.ExceptionInInitializerError

但为什么呢？如果我制作完全相同的对象并称之为“Lel”，我不会收到此错误。为什么会这样，我很困惑

对象名称会影响他们的行为吗？

0 个答案: