public class Demo { public static void main(String args[]) { int x = 10 ; double y = 20.2 ; long z = 10L; String str = "" + x + y * z ; System.out.println(str) ; } }
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相關知識點:https://edu.aliyun.com/course/34java
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class Happy { public static void main(String args[]) { int i = 1 ; int j = i++ ; if((i==(++j))&&((i++)==j)) { i += j ; } System.out.println("i = "+i); } }
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public class Demo { public static void main(String args[]) { long num = 100 ; int x = num + 2 ; System.out.println(x) ; } }
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public class Demo { public static void main(String args[]) { System.out.println(inc(10) + inc(8) + inc(-10)) ; } public static int inc(int temp) { if (temp > 0) { return temp * 2 ; } return -1 ; } }
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public class Demo { public static void main(String args[]) { char c = 'A' ; int num = 10 ; switch(c) { case 'B' : num ++ ; case 'A' : num ++ ; case 'Y' : num ++ ; break ; default : num -- ; } System.out.println(num) ; } }
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public class Demo { public static void main(String args[]) { String str = "" ; for (int x = 0 ; x < 5 ; x ++) { str += x ; } System.out.println(str) ; } }
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public class Demo { public static void main(String args[]) { int num = 2147483647 ; num += 2L ; System.out.println(num) ; } }
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public class Demo { public static void main(String args[]) { int num = 68 ; char c = (char) num ; System.out.println(c) ; } }
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相關知識點: https://edu.aliyun.com/course/34
public class Demo { public static void main(String args[]) { int num = 2147483647 ; num += 2 ; System.out.println(num) ; } }
相關知識點: https://edu.aliyun.com/course/34
相關知識點: https://edu.aliyun.com/course/34
public class Demo { public static void main(String args[]) { int num = 50 ; num = num ++ * 2 ; System.out.println(num) ; } }
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public class Demo { public static void main(String args[]) { int sum = 0 ; int x = 10 ; while (x > 0) { sum += x ; } System.out.println(sum) ; } }
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這道題的答案是D. 很惋惜,我作錯了。首位不能是數字定義。
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public class Demo { public static void main(String args[]) { int sum = 0 ; for (int x = 0 ; x < 10 ; x ++) { sum += x ; if (x % 3 == 0) { break ; } } System.out.println(sum) ; } }
相關知識點: https://edu.aliyun.com/course/34
相關知識點: https://edu.aliyun.com/course/34
public class Demo { public static void main(String args[]) { boolean flag = 10%2 == 1 && 10 / 3 == 0 && 1 / 0 == 0 ; System.out.println(flag ? "mldn" : "yootk") ; } }
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