while循环中的多个条件（或） - java

Question

My while loop looks like this currently:

    while((0 <= trader.getWallet()) || (0 <= days)) {  
// do something
}

so if any of those two conditions are false somewhere in the loop the program will exit, but my program doesn't seem to listen to the second condition only the first, but it would listen to them separately if I just put them in one at a time for testing, so did I write this while loop wrong?

Answer 1

In case of Logical OR if any one of the two conditions is true whole statement shall execute to be true. In case of Logical AND both the conditions have to be true for the whole statement to be true. So,you can use logical AND

while((trader.getWallet>=0()) && (days>=0))

Answer 2

If the first condition is true then OR won't evaluate the second condition,

Instead, it should be

while(trader.getWallet() > 0 && days > 0) {  
   // do something
}