How to express not equal in java

Not equal to in java, it can be used between numbers! = means that strings can be compared using the equals method

public class TestA { public static void main(String[] args){ int a=5; int b=4; //数字或者对象地址之间不等于可以用！=符号来比较 System.out.println(a!=b); String str1="hello"; String str2="hi"; String str3="hello"; //字符串之间可以用equals方法来比较 System.out.println(str1.equals(str2)); //true表示相等，false表示不等 System.out.println(str1.equals(str3));

equals() method is used to compare a string with a specified object.

Syntax

public boolean equals(Object anObject)

Parameters

anObject -- The object to compare with the string.

Return value

Returns true if the given object is equal to the string; otherwise returns false.

For more java knowledge, please pay attention to thejava basic tutorialcolumn.

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