关于Boolean对象的compareTo方法的一些疑惑

[我是个伪iter]

话不多说直接进主题
jdk1.7 eclipse luna
关于compareTo方法的api文档解释是：
如果对象与参数表示的布尔值相同，则返回零；如果此对象表示 true，参数表示 false，则返回一个正值；如果此对象表示 false，参数表示 true，则返回一个负值
java代码 System.out.println("new

Boolean(true).compareTo(true):"+new Boolean(true).compareTo(new Boolean(true)));得出结果是new Boolean(true).compareTo(true):0 这证明文档说的是正确的 但是源码如下：
...
public int compareTo(Boolean paramBoolean)
{
return compare(this.value, paramBoolean.value);
}
public static int compare(boolean paramBoolean1, boolean paramBoolean2)
{
return paramBoolean1 ? 1 : paramBoolean1 == paramBoolean2 ? 0 : -1;
}
...
按照源码如果是true和true比较结果是1为什么是0啊求解

[我是个伪iter]

引用 楼主 u010444251 的回复:

话不多说直接进主题 jdk1.7 eclipse luna 关于compareTo方法的api文档解释是： 如果对象与参数表示的布尔值相同，则返回零；如果此对象表示 true，参数表示 false，则返回一个正值；如果此对象表示 false，参数表示 true，则返回一个负值 java代码 System.out.println("new

Boolean(true).compareTo(true):"+new Boolean(true).compareTo(new Boolean(true)));得出结果是new Boolean(true).compareTo(true):0 这证明文档说的是正确的 但是源码如下： ... public int compareTo(Boolean paramBoolean) { return compare(this.value, paramBoolean.value); } public static int compare(boolean paramBoolean1, boolean paramBoolean2) { return paramBoolean1 ? 1 : paramBoolean1 == paramBoolean2 ? 0 : -1; } ... 按照源码如果是true和true比较结果是1为什么是0啊求解

对于true和true比较时 jdk1.7 true ? 1 : true == true ? 0 : -1 这个结果是1我是eclipse luna版跑了下的 他的执行顺序应该是（true ? 1 : （true == true ? 0 : -1））这样的

[Paul_ZJ]

按源码也等于0啊 public static int compare(boolean paramBoolean1, boolean paramBoolean2) { return paramBoolean1 ? 1 : paramBoolean1 == paramBoolean2 ? 0 : -1; } 假设paramBoolean1=TRUE，paramBoolean2=TRUE paramBoolean1 ? 1 : paramBoolean1这个表达式的结果是1 1 == paramBoolean2 ? 0 : -1;这个表达式的结果是0 没有问题啊

[lliiqiang]

true>false false<true true==true false==false 都是true,自然相等，没有小于对方,也没有大于对方，返回0.

[我是个伪iter]

球助啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊

[fso918]

楼主不厚道啊！ Boolean.java的源码：

/**
     * Compares this {@code Boolean} instance with another.
     *
     * @param   b the {@code Boolean} instance to be compared
     * @return  zero if this object represents the same boolean value as the
     *          argument; a positive value if this object represents true
     *          and the argument represents false; and a negative value if
     *          this object represents false and the argument represents true
     * @throws  NullPointerException if the argument is {@code null}
     * @see     Comparable
     * @since  1.5
     */
    public int compareTo(Boolean b) {
        return compare(this.value, b.value);
    }

    /**
     * Compares two {@code boolean} values.
     * The value returned is identical to what would be returned by:
     * <pre>
     *    Boolean.valueOf(x).compareTo(Boolean.valueOf(y))
     * </pre>
     *
     * @param  x the first {@code boolean} to compare
     * @param  y the second {@code boolean} to compare
     * @return the value {@code 0} if {@code x == y};
     *         a value less than {@code 0} if {@code !x && y}; and
     *         a value greater than {@code 0} if {@code x && !y}
     * @since 1.7
     */
    public static int compare(boolean x, boolean y) {
        return (x == y) ? 0 : (x ? 1 : -1);
    }

不知道你的这个源码从哪里看的

[我是个伪iter]

引用 5 楼 fso918 的回复:

楼主不厚道啊！ Boolean.java的源码：

/**
     * Compares this {@code Boolean} instance with another.
     *
     * @param   b the {@code Boolean} instance to be compared
     * @return  zero if this object represents the same boolean value as the
     *          argument; a positive value if this object represents true
     *          and the argument represents false; and a negative value if
     *          this object represents false and the argument represents true
     * @throws  NullPointerException if the argument is {@code null}
     * @see     Comparable
     * @since  1.5
     */
    public int compareTo(Boolean b) {
        return compare(this.value, b.value);
    }

    /**
     * Compares two {@code boolean} values.
     * The value returned is identical to what would be returned by:
     * <pre>
     *    Boolean.valueOf(x).compareTo(Boolean.valueOf(y))
     * </pre>
     *
     * @param  x the first {@code boolean} to compare
     * @param  y the second {@code boolean} to compare
     * @return the value {@code 0} if {@code x == y};
     *         a value less than {@code 0} if {@code !x && y}; and
     *         a value greater than {@code 0} if {@code x && !y}
     * @since 1.7
     */
    public static int compare(boolean x, boolean y) {
        return (x == y) ? 0 : (x ? 1 : -1);
    }

不知道你的这个源码从哪里看的

擦，我是用反编译工具直接反编译rt.jar包的 看来这工具还是不值得相信啊