单项选择题 What will be written to the standard output when the following program is run？（）   public class Qcb90 {   int a；   int b；   public void f（） {  a = 0；   b = 0；   int[] c = { 0 }；   g（b， c）；   System.out.println（a + " " + b + " " + c[0] + " "）；   }   public void g（int b， int[] c） {   a = 1；  b = 1；  c[0] = 1；  }   public static void main（String args[]） {   Qcb90 obj = new Qcb90（）；   obj.f（）；   }   }

单项选择题 What will be written to the standard output when the following program is run？（）   public class Q8499 {   public static void main（String args[]） {  double d = -2.9；   int i = （int） d；  i *= （int） Math.ceil（d）；  i *= （int） Math.abs（d）；   System.out.println（i）；   }   }

填空题 Whatisthenameofthemethodthatthreadscanusetopausetheirexecutionuntilsignalledtocontinuebyanotherthread？（）Fillinthenameofthemethod（donotincludeaparameterlist）.