- How to check the exit status using an if statement
What would be the best way to check the exit status in an if statement to echo a specific output? I'm thinking of it being: if [ $? -eq 1 ]; then echo quot;blah blah blah quot; fi The issue I
- java - (AND) and || (OR) in IF statements - Stack Overflow
Java has 5 different boolean compare operators: , , |, ||, ^ and are "and" operators, | and || "or" operators, ^ is "xor" The single ones will check every parameter, regardless of the values, before checking the values of the parameters The double ones will first check the left parameter and its value and if true (||) or false ( ) leave the second one untouched Sound compilcated? An
- SQL IF, BEGIN, END, END IF? - Stack Overflow
It has to do with the Normal Form for the SQL language IF statements can, by definition, only take a single SQL statement However, there is a special kind of SQL statement which can contain multiple SQL statements, the BEGIN-END block If you omit the BEGIN-END block, your SQL will run fine, but it will only execute the first statement as part of the IF Basically, this: IF @Term = 3 INSERT
- RegEx for matching A-Z, a-z, 0-9, _ and . - Stack Overflow
I need a regex which will allow only A-Z, a-z, 0-9, the _ character, and dot ( ) in the input I tried: [A-Za-z0-9_ ] But, it did not work How can I fix it?
- What are the differences between if-else and else-if? [closed]
I am trying to discern the difference between: if else and else if How do you use these? And when do you use them and when not?
- How to if else statement in shell script - Stack Overflow
The if statement in shell uses the command [ Since [ is a command (you could also use 'test'), it requires a space before writing the condition to test To see the list of conditions, type: man test You'll see in the man page that: s1 > s2 tests if string s1 is after string s2 n1 gt n2 tests if integer n1 is greater than n2 In your case, using > would work, because string 100 comes after
- How to show if condition on a sequence diagram?
I know this question is old and I haven't done a search yet, but it made me wonder whether showing branching is even a good idea for sequence diagrams I always thought the conditions for the sequence were explicitly described in the scenario and thus no branching took place during the sequence Alternative paths were handled by describing a variant of the scenario which had its own sequence
- What is the purpose of using #ifdef and #if in C++?
#ifdef means if defined If the symbol following #ifdef is defined, either using #define in prior source code or using a compiler command-line argument, the text up to the enclosing #endif is included by the preprocessor and therefore compiled #if works similarly, but it evaluates the boolean expression following it If that expression is true, the code up to the enclosing #endif is included
|