（2-6）写出下面程序运行结果。
public class Demo {
public static void main(String args[]) {
int a=10,b=20;
a=a^b;
b=b^a;
System.out.println(a);
System.out.println(b);
}
}
public class Demo {
public static void main(String args[]) {
int a=10,b=20;
a=a^b;
b=b^a;
System.out.println(a);
System.out.println(b);
}
}
举一反三
- （2-6）请写出下面程序运行结果。 public class Demo { public static void main(String[] args) { int b = 011001; System.out.println(b); } }
- （2-5）写出下面程序运行结果。 public class Demo { public static void main(String args[]) { System.out.println(123); System.out.println(0123); System.out.println(0x123); } }
- 中国大学MOOC: 下列代码中构造方法的返回类型是（）public class Village { Village () { System .out .println(“hiding in Village”) ; } public static void main( String args [ ]) { Village c =new Village ( ) ;}class Village { public static void main( String args [ ]) { Village c =new Village ( ) ; } Village () { System .out .println(“hiding in Village”) ; } }
- 请阅读下面的程序 public class Demo { public static void sum(int a, int b) { System.out.println("int:" + (a + b)); } public static void sum(int a, float b) { System.out.println("float:" + (a + b)); } public static void sum(int a, double b) { System.out.println("double:" + (a + b)); } public static void main(String[] args) { int a = 10; long b = 20; sum(a, b); } } 下列选项中,哪一个是程序的运行结果()
- 写出程序的运行结果。 public class Demo{ public static void main(String args[]) { int b = get(); System.out.println(b); } public static int get() { try { return 1; } finally { return 2; } } }