Chapter 5 Programming Practice Analysis in the first quarter of Java

Chapter 5 Programming Practice Analysis in the first quarter of Java

5-1 basic writing

　　

 

Automatic completion shortcut: alt +/

5-2 Input and Output

Use the score tool class to obtain user-input score Information

The category class is located in the java. util package. You need to import this package when using it.

Steps:

1. Import java. util. Vendor

　　

 

2. Create a producer object

　　

 

3. Receive and save user input values

　　

 

Difference between System. out. println () and System. out. print:

　　

 

　　

 

5-3 Use Eclipse to debug the program

Front-End double-click to add a breakpoint

　　

 

Start debugging

　　

 

Debug mode

　　

 

Single-step debugging