按时停止while功能

Question

I need to create a string up to the point when I get a * character and I would like to do it without having to double the condition (c!='*') . I tried while(){...} and do {...} while() but the * is still added.

Here is a piece of code:

while (c!='*')
            {
                c=dec.checkChar(dec.extractCode(t, d));
                d=d.shiftRight(7);
                if (c!='*')decoded+=c;
            } 

Answer 1

while(true){
            c=dec.checkChar(dec.extractCode(t, d));
            if(c=='*'){
                 break;
              }
            d=d.shiftRight(7);
            decoded+=c;
            } 

Answer 2

Don't change c immediately after checking it in the outer loop. Instead, restructure you logic to process the c you just checked wasn't an exit condition, and the make updating the c the last thing you do.