if( test ) expr
if( test ) expr1; else expr2;
The if and if-else statements. Expression test must be a boolean expression. Expressions expr, expr1 and expr2 stand for a single expression or a block of statements. You may nest if statements.
Example
p = 2 if( p ) println( "Condition met" ); else { s = 0; for( k=1; k<20; k++ ) s = s+k; }