The output statements are: 1. Print "System.out.println()" with line breaks; 2. Print "System.out.print()" without line breaks; 3. Byte output "System.out.write ()"; 4. Output "System.out.printf()" according to the format.
The operating environment of this tutorial: windows7 system, java10 version, Dell G3 computer.
There are four types of output statements in Java:
System.out.println(1111);//換行打印
System.out.print(1111);//不換行打印
System.out.write(2222);//字節(jié)輸出
System.out.printf("%+8.3f\n", 3.14);//按格式輸出System.out.println(); is the most commonly used output statement, which converts the content in brackets into string output Go to the output window (console) and wrap the line. When the output is a basic data type, it will be automatically converted into a string. If the output is an object, the toString(); method of the object will be automatically called and the return value will be output. Go to the console
System.out.print(); Very similar to the first one, the difference is that the previous output will have a newline, but this command will not have a newline after the output.
System.out.printf(); This method continues the output method of C language and outputs through formatted text and parameter list.
Related free learning recommendations: java basic tutorial
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