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What happens when a primitive value is concatenated with a String?

What package contains the Math class?

Consider the following code segment. int x = /* some integer value */ ;int y = /* some integer value */ ;boolean result = (x < y);result = ( (x >= y) && !result ); Which of the following best describes the conditions under which the value of result will be true after the code segment is executed?

Determine if the following evaluates to true or false based on the value of these variables:   int a = 0;int b = 1;   (a < -10 || b == 2);

Consider the following method. public String wordPlay(String word){ String str = “”; for (int k = 0; k < word.length(); k++) { if (k % 3 == 0) { str = word.substring(k, k + 1) + str; } } return str;} The following code segment appears in another method in the same class as wordPlay. System.out.println(wordPlay("Computer Science")); What is printed as a result of executing the code segment?

Consider the following code segment. int val = 48;int div = 6;while ((val % 2 == 0) && div > 0){ if (val % div == 0) { System.out.print(val + ” “); } val /= 2; div–;} What is printed when the code segment is executed?

Consider the following method. public static String changeStr(String str){ String result = “”; for (int i = str.length() – 1; i >= str.length() / 2; i -= 2) { result += str.substring(i, i + 1); } return result;} What value is returned as a result of the method call changestr (“12345”) ?

Consider the following statement. boolean x = (5 < 8) == (5 == 8); What is the value of x after the statement has been executed?

If an int variable age holds the value 4, what is its value after the following statement is executed?             age = age * 7; If it shows an error, just type ‘error.’

The random() method generates numbers greater than or equal to 0 and less than 1.