How to use Java arrays: First declare the array before use and tell the computer what the data type is; then allocate space and tell the computer to allocate several consecutive spaces; finally assign a value to the array.
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How to use java arrays:
1. We have learned the definition and meaning of arrays in Java, but how to use them? When we experiment with arrays, we use the keyword NEW to instantiate the array before it can be used. We will introduce it in detail starting from the fifth step.
#2. Declare the array before use. Declaring an array tells the computer what the data type is. The specific implementation steps are as follows
#3. Then allocate space. Allocating space is to tell the computer to allocate several consecutive spaces.
#4. Finally assign a value to the array. Assigning a value to an array means putting data into the allocated grid.
#5. How to assign a value to an array. Above we introduced assigning values to arrays, but how to assign values specifically? There are generally two situations, which are also the most commonly used situations. Remember not to make the size of the array exceed the length.
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