这样写就行
char[][] arr = new char[][]{{'张','三'},{'李','四'},{'王','五'}};
char a[][]=new char[4][]; //数组初始化
a[0]=new char[]{'张','三'};
a[1]=new char[]{'李','四'};
a[2]=new char[]{'王','五'};
a[3]=new char[]{'赵','六'};
char[][] array = new char[4][2]; //动态初始化数组
array[0][0] = '张';
array[0][1] = '三';
array[1][0] = '李';
array[1][1] = '四';
array[2][0] = '王';
array[2][1] = '五';
array[3][0] = '赵';
array[3][1] = '六';
System.out.println(JSON.toJSONString(array)); //输出结果:["张三","李四","王五","赵六"]
初始化的东西,可以看这篇,贼全
https://blog.csdn.net/qq_36433289/article/details/127914977