KwickClips Java · 43 sec · free
Can you give input before the program starts?
Short answer. Yes, as command line arguments after the class name.
Why convert args[1]?
Every argument arrives as a String, so numbers need Integer.parseInt().
java Greet Riya 15
| Element | Value |
|---|---|
| args[0] | "Riya" |
| args[1] | "15" |
| args.length | 2 |
Remember
| Arguments arrive in String[] args |
| Use parseInt() for numbers |
Can you give values before a Java program starts? Yes. Values after the class name go into args. Args zero is Riya. Args one is the text fifteen. The length is two. Remember. Arguments arrive as Strings. Use parse int for numbers.
This clip is from the full lesson: Input in Java: Scanner Class and Other Input Methods — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: ICSE Class 9 Computer Applications, ICSE Class 9 Computer Applications, ICSE Class 9 Computer Applications, ICSE Class 10 Computer Applications
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