Java 如何在整数变量中存储负数？
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How does Java store Negative numbers in an Integer Variable?
提问by Ashish Krishnan
How does this snippet of code prints "-511" as the output on the console?
这段代码如何在控制台上打印“-511”作为输出？
class Test
{
public static void main(String[] args) {
int i = -0777;
System.out.printf("%d",i);
}
}
Is it to do with the way Java stores Negative numbers?
是否与 Java 存储负数的方式有关？
采纳答案by ouah
回答by Louis Wasserman
Numbers starting with 0are treated as being in octal by Java. -077is equivalent to -63, which is what I get when I run your program.
以 开头的数字0被 Java 视为八进制。 -077相当于-63，这是我运行您的程序时得到的结果。
回答by ControlAltDel
When a number in java code starts with a 0, it interprets it as octal format
当 java 代码中的数字以 0 开头时，它会将其解释为八进制格式
