Flow Control and Exception Handling - while Statement

Syntax (JLS §14.12)

    do {
            statement(s);
    } while(boolean expression);

• executes statement(s) until expression is false
• statement(s) are always executed at least once

    do {
        System.out.println("Always executed at least once");
    } while( false );       

• break can be used to alter do-loop processing

    do {
         if( i==6 ) break;          // exit loop
         System.out.println(i);
         i++;
    }while( i < 10 );

• continue can be used to alter do-loop processing

    do {
    
         if( i==6 ) {
             i--;
             continue;       // skip 6
         } else {
             System.out.println(i);
             i--;
         }

    } while ( i >= 0);     

Example Code

• TestDo.java