单项选择题
A. 0
B. null
C. false
D. 编译错误
单项选择题 现有: Public/project]class TestFoo { int x; String y; int getX() { return x; } (4,5,6是方法) String getY() { return y; } void setX(int x) { int z = 7; this.x = x; } } Private代表属性封装可以添加多少个修饰符来封装此类?()
单项选择题 public class Pass{ public static void main(String[]args){ int x=5; Pass p=new Pass(); p.doStuff(x); System.out.print("mainx="+x); } void doStuff(intx){ System.out.print("doStuffx="+x++); } } What is the result?()
单项选择题 Given the command line java Pass2 and: public class Pass2{ public void main(String[]args){ int x=6; Pass2 p=new Pass2(); p.doStuff(x); System.out.print("mainx="+x); } void doStuff(intx){ System.out.print("doStuffx="+x++); } } What is the result?()