Questions from Starting Out With Java

Q: Write a statement, after the following code, that creates an

Write a statement, after the following code, that creates an HBox container, adds the label1, label2, and label3 controls to it, and has 10 pixels of spacing between the controls. Label label1 = new L...

Q: Assume the variable name references a String object. Write an if

Assume the variable name references a String object. Write an if statement that displays “Do I know you?†if the String object contains “Timothyâ€.

Q: Assume the variables name1 and name2 reference two different String objects,

Assume the variables name1 and name2 reference two different String objects, containing different strings. Write code that displays the strings referenced by these variables in alphabetical order.

Q: Modify the statement you wrote in response to Checkpoint3.20 so

Modify the statement you wrote in response to Checkpoint3.20 so it performs a case-insensitive comparison. Data from Checkpoint 3.20: Assume the variable name references a String object. Write an if...

Q: Rewrite the following if-else statements as statements that use the

Rewrite the following if-else statements as statements that use the conditional operator. 1. if (x > y)  z = 1; else  z = 20; 2. if (temp > 45)  population = base * 10; else  population = base...

Q: Complete the following program skeleton by writing a switch statement that displays

Complete the following program skeleton by writing a switch statement that displays “one†if the user has entered 1, “two†if the user has entered 2, and “three†if the user has entered 3. If...

Q: Rewrite the following if-else-if statement as a switch

Rewrite the following if-else-if statement as a switch statement. if (selection == 'A') System.out.println("You selected A."); else if (selection == 'B') System.out.println("You selected B."); else if...

Q: Explain why you cannot convert the following if-else-if

Explain why you cannot convert the following if-else-if statement into a switch statement. if (temp == 100)  x = 0; else if (population > 1000)  x = 1; else if (rate < .1)  x = −1;

Q: What is wrong with the following switch statement? // This

What is wrong with the following switch statement? // This code has errors!!! switch (temp) { case temp < 0 : System.out.println("Temp is negative."); break; case temp = 0: System.out.println("Temp is...

Q: What will the following code display? int funny = 7

What will the following code display? int funny = 7, serious = 15; funny = serious * 2; switch (funny) { case 0 : System.out.println("That is funny."); break; case 30: System.out.println("That is seri...