In many null-pointer exceptions, the true bug occurs where the variable is actually assigned to null.

在许多空指针异常中，真正的错误出现在变量被赋为空值的地方。

youdao

If the latter is true, then the indicator variable for that column is set to -5 which will set the column to the default value for that column.

如果是后一种情况，那么该列的指示符变量被设置为- 5，这将把该列的值设置为默认值。

youdao

If the former is true, then the indicator variable for that column is set to -1 which results in the column being updated with the null value.

如果是前一种情况，那么该列的指示符变量被设置为- 1，这导致该列被更新为空值。

youdao

If it is right, I'm going to print out the information but I'm also going to change that variable to true.

看如果它是对的,它是对的的话,我将会输出结果。

麻省理工公开课 - 计算机科学及编程导论课程节选

swap I'm going to keep track of a little variable called swap, it's initially true, and as long as it's true, I'm going to keep going, but inside of the loop I'm going to set it to false, and only if I do a swap will I set it to true.

我打算跟踪一个小的变量称为,初始值为真，只要它是真的,算法就会继续，但是在循环里,我打算把他设为假,除非交换发生，就把它设为真。

麻省理工公开课 - 计算机科学及编程导论课程节选

This will be especially true for products whose pricing is complex, variable and therefore unpredictable to buyers, such as insurance, air travel, mobile-phone plans and hotel rooms.

ECONOMIST: Online prices

Further, note that over variable time scales Simon is still correct: it really is true that new technologies of extraction are developed and these increase supply and push prices down.

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