How to define string in java

There are two ways to instantiate strings in java, namely:

1. Direct assignment

String str = "Hello World";

2. Constructor instantiation

String str = new String("Hello World");

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Specific example:

//直接赋值
public class StringDemo{
	public static void main(String[] args) {
		String str1 = "Hello qty";
		String str2 = "Hello qty";
	}
}
//构造方法实例化
public class StringDemo{
	public static void main(String[] args) {
	String str1 = new String("Hello qty");
	}
}

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