what are string operations in java code example

Example 1: string method example in java

public boolean equalsIgnoreCase(String s)
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String x = "Exit"; 
System.out.println( x.equalsIgnoreCase("EXIT")); // is "true" 
System.out.println( x.equalsIgnoreCase("tixe")); // is "false"

Example 2: string method example in java

public String concat(String s)

String x = "book";
System.out.println( x.concat(" author") ); // output is "book author"